Christos Christodoulou's Books

Radio Propagation and Adaptive Antennas for Wireless Communication Networks

Terrestrial, Atmospheric, and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

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Radio Propagation and Adaptive Antennas for Wireless Communication Networks

Terrestrial, Atmospheric, and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

Radio Propagation and Adaptive Antennas for Wireless Communication Networks, 2nd Edition, presents a comprehensive overview of wireless communication system design, including the latest updates to considerations of over-the-terrain, atmospheric, and ionospheric communication channels. New features include the latest experimentally-verified stochastic approach, based on several multi-parametric models; all-new chapters on wireless network fundamentals, advanced technologies, and current and modern multiple access networks; and helpful problem sets at the conclusion of each chapter to enhance clarity. The volume’s emphasis remains on a thorough examination of the role of obstructions on the corresponding propagation phenomena that influence the transmission of radio signals through line-of-sight (LOS) and non-line-of-sight (NLOS) propagation conditions along the radio path between the transmitter and the receiver antennas—and how adaptive antennas, used at the link terminals, can be used to minimize the deleterious effects of such obstructions. With its focus on 3G, 4G, MIMO, and the latest wireless technologies, Radio Propagation and Adaptive Antennas for Wireless Communication Networks represents an invaluable resource to topics critical to the design of contemporary wireless communication systems. Explores novel wireless networks beyond 3G, and advanced 4G technologies, such as MIMO, via propagation phenomena and the fundamentals of adapted antenna usage. Explains how adaptive antennas can improve GoS and QoS for any wireless channel, with specific examples and applications in land, aircraft and satellite communications. Introduces new stochastic approach based on several multi-parametric models describing various terrestrial scenarios, which have been experimentally verified in different environmental conditions New chapters on fundamentals of wireless networks, cellular and non-cellular, multiple access networks, new applications of adaptive antennas for positioning, and localization of subscribers Includes the addition of problem sets at the end of chapters describing fundamental aspects of wireless communication and antennas.

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John Wiley & Sons

Published Date

ISBN 10

1118816722

ISBN 13

9781118816721

Machine Learning Applications in Electromagnetics and Antenna Array Processing

By: Manel Martínez-Ramón,Arjun Gupta,José Luis Rojo-Álvarez,Christos G. Christodoulou

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Machine Learning Applications in Electromagnetics and Antenna Array Processing

By: Manel Martínez-Ramón,Arjun Gupta,José Luis Rojo-Álvarez,Christos G. Christodoulou

This practical resource provides an overview of machine learning (ML) approaches as applied to electromagnetics and antenna array processing. Detailed coverage of the main trends in ML, including uniform and random array processing (beamforming and detection of angle of arrival), antenna optimization, wave propagation, remote sensing, radar, and other aspects of electromagnetic design are explored. An introduction to machine learning principles and the most common machine learning architectures and algorithms used today in electromagnetics and other applications is presented, including basic neural networks, gaussian processes, support vector machines, kernel methods, deep learning, convolutional neural networks, and generative adversarial networks. Applications in electromagnetics and antenna array processing that are solved using machine learning are discussed, including antennas, remote sensing, and target classification.

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436

Publisher

Artech House

Published Date

ISBN 10

1630817767

ISBN 13

9781630817763

Fundamentals of Antennas

Concepts and Applications

By: Christos G. Christodoulou,Parveen F. Wahid

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Fundamentals of Antennas

Concepts and Applications

By: Christos G. Christodoulou,Parveen F. Wahid

Annotation This tutorial explains antenna theory and operation and is intended for students, engineers, and researchers. Basic wire antennas and array antennas are described in detail and other types are introduced, including reflectors, lenses, horns, microstrip, Yagi, and frequency-independent antennas.

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112

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SPIE Press

Published Date

ISBN 10

0819441120

ISBN 13

9780819441126

Despeckle Filtering Algorithms and Software for Ultrasound Imaging

By: Christos Loizou,Constantinos Pattichis

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Despeckle Filtering Algorithms and Software for Ultrasound Imaging

By: Christos Loizou,Constantinos Pattichis

It is well-known that speckle is a multiplicative noise that degrades image quality and the visual evaluation in ultrasound imaging. This necessitates the need for robust despeckling techniques for both routine clinical practice and teleconsultation. The goal for this book is to introduce the theoretical background (equations), the algorithmic steps, and the MATLABTM code for the following group of despeckle filters: linear filtering, nonlinear filtering, anisotropic diffusion filtering and wavelet filtering. The book proposes a comparative evaluation framework of these despeckle filters based on texture analysis, image quality evaluation metrics, and visual evaluation by medical experts, in the assessment of cardiovascular ultrasound images recorded from the carotid artery. The results of our work presented in this book, suggest that the linear local statistics filter DsFlsmv, gave the best performance, followed by the nonlinear geometric filter DsFgf4d, and the linear homogeneous mask area filter DsFlsminsc. These filters improved the class separation between the asymptomatic and the symptomatic classes (of ultrasound images recorded from the carotid artery for the assessment of stroke) based on the statistics of the extracted texture features, gave only a marginal improvement in the classification success rate, and improved the visual assessment carried out by two medical experts. A despeckle filtering analysis and evaluation framework is proposed for selecting the most appropriate filter or filters for the images under investigation. These filters can be further developed and evaluated at a larger scale and in clinical practice in the automated image and video segmentation, texture analysis, and classification not only for medical ultrasound but for other modalities as well, such as synthetic aperture radar (SAR) images. Table of Contents: Introduction to Ultrasound Imaging / Despeckle Filtering Algorithms / Evaluation Methodology / Applications of Despeckle Filtering in Ultrasound Imaging / Comparison and Discussion of Despeckle Filtering Algorithms / Summary and Future Directions

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172

Publisher

Springer Nature

Published Date

ISBN 10

303101510X

ISBN 13

9783031015106

Cyprus under British Colonial Rule

Culture, Politics, and the Movement toward Union with Greece, 1878–1954

By: Christos P. Ioannides

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Cyprus under British Colonial Rule

Culture, Politics, and the Movement toward Union with Greece, 1878–1954

By: Christos P. Ioannides

This is a unique book that combines a political narrative with poetry to examine the role of culture and the fusion of religion and politics during the struggle against colonialism. The context is Britain’s geopolitical interests in the Middle East. The author utilizes a vital cultural source echoing the authentic voice of the people, Cypriot folk poems, which has remained virtually unknown to the English reader until now. Translated into English, they are interwoven into the book’s narrative to reflect the yearning for social justice and the political sentiments of the vast majority of the population, the peasants, in a rural society. Lawrence Durrell’s literary masterpiece, Bitter Lemons, his politico-cultural chronicle on British-ruled Cyprus, is also discussed critically. The Greek Orthodox Church led the anti-colonial movement revolving around union with Greece. Through his intimate knowledge of Greek Orthodox practices, the author elucidates how religious customs and rituals were intertwined with the nationalist ideology to lead to political mobilization. In the process, culture, with its religious underpinnings, shaped politics. This dynamic has been the case from the Middle East, Turkey and North Africa, to Eurasia and South East Asia. Prime examples are the Iranian revolution and the more recent Arab Spring, both of which caught the West by surprise. In Cyprus, the British, with their sense of superiority, remained alien to the local culture and discounted popular sentiment. The two rebellions that ensued caught Britain totally by surprise. This is a valuable case study on the convergence of religion and politics. Academics, students and non-specialists will find a captivating narrative on Britain’s colonial encounter in an idyllic but strategic island in the Eastern Mediterranean.

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341

Publisher

Lexington Books

Published Date

ISBN 10

1498582036

ISBN 13

9781498582032

Despeckle Filtering for Ultrasound Imaging and Video, Volume I

Algorithms and Software, Second Edition

By: Christos P. Loizou,Constantinos S. Pattichis

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Despeckle Filtering for Ultrasound Imaging and Video, Volume I

Algorithms and Software, Second Edition

By: Christos P. Loizou,Constantinos S. Pattichis

It is well known that speckle is a multiplicative noise that degrades image and video quality and the visual expert's evaluation in ultrasound imaging and video. This necessitates the need for robust despeckling image and video techniques for both routine clinical practice and tele-consultation. The goal for this book (book 1 of 2 books) is to introduce the problem of speckle occurring in ultrasound image and video as well as the theoretical background (equations), the algorithmic steps, and the MATLABTM code for the following group of despeckle filters: linear filtering, nonlinear filtering, anisotropic diffusion filtering, and wavelet filtering. This book proposes a comparative evaluation framework of these despeckle filters based on texture analysis, image quality evaluation metrics, and visual evaluation by medical experts. Despeckle noise reduction through the application of these filters will improve the visual observation quality or it may be used as a pre-processing step for further automated analysis, such as image and video segmentation, and texture characterization in ultrasound cardiovascular imaging, as well as in bandwidth reduction in ultrasound video transmission for telemedicine applications. The aforementioned topics will be covered in detail in the companion book to this one. Furthermore, in order to facilitate further applications we have developed in MATLABTM two different toolboxes that integrate image (IDF) and video (VDF) despeckle filtering, texture analysis, and image and video quality evaluation metrics. The code for these toolsets is open source and these are available to download complementary to the two books. Table of Contents: Preface / Acknowledgments / List of Symbols / List of Abbreviations / Introduction to Speckle Noise in Ultrasound Imaging and Video / Basics of Evaluation Methodology / Linear Despeckle Filtering / Nonlinear Despeckle Filtering / Diffusion Despeckle Filtering / Wavelet Despeckle Filtering / Evaluation of Despeckle Filtering / Summary and Future Directions / References / Authors' Biographies

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154

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Springer Nature

Published Date

ISBN 10

3031015231

ISBN 13

9783031015236

End-to-End Adaptive Congestion Control in TCP/IP Networks

By: Christos N. Houmkozlis,George A. Rovithakis

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End-to-End Adaptive Congestion Control in TCP/IP Networks

By: Christos N. Houmkozlis,George A. Rovithakis

Establishing adaptive control as an alternative framework to design and analyze Internet congestion controllers, End-to-End Adaptive Congestion Control in TCP/IP Networks employs a rigorously mathematical approach coupled with a lucid writing style to provide extensive background and introductory material on dynamic systems stability and neural network approximation; alongside future internet requests for congestion control architectures. Designed to operate under extreme heterogeneous, dynamic, and time-varying network conditions, the developed controllers must also handle network modeling structural uncertainties and uncontrolled traffic flows acting as external perturbations. The book also presents a parallel examination of specific adaptive congestion control, NNRC, using adaptive control and approximation theory, as well as extensions toward cooperation of NNRC with application QoS control. Features: Uses adaptive control techniques for congestion control in packet switching networks Employs a rigorously mathematical approach with lucid writing style Presents simulation experiments illustrating significant operational aspects of the method; including scalability, dynamic behavior, wireless networks, and fairness Applies to networked applications in the music industry, computers, image trading, and virtual groups by techniques such as peer-to-peer, file sharing, and internet telephony Contains working examples to highlight and clarify key attributes of the congestion control algorithms presented Drawing on the recent research efforts of the authors, the book offers numerous tables and figures to increase clarity and summarize the algorithms that implement various NNRC building blocks. Extensive simulations and comparison tests analyze its behavior and measure its performance through monitoring vital network quality metrics. Divided into three parts, the book offers a review of computer networks and congestion control, presents an adaptive congestion control framework as an alternative to optimization methods, and provides appendices related to dynamic systems through universal neural network approximators.

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332

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CRC Press

Published Date

ISBN 10

143984058X

ISBN 13

9781439840580

Despeckle Filtering for Ultrasound Imaging and Video

Algorithms and Software, Second Edition, Volume 1

By: Christos P. Loizou,Constantinos S. Pattichis

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Despeckle Filtering for Ultrasound Imaging and Video

Algorithms and Software, Second Edition, Volume 1

By: Christos P. Loizou,Constantinos S. Pattichis

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182

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Morgan & Claypool Publishers

Published Date

ISBN 10

1627057420

ISBN 13

9781627057424

Despeckle Filtering for Ultrasound Imaging and Video, Volume II

Selected Applications, Second Edition

By: Christos P. Loizou,Constantinos S. Pattichis

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Despeckle Filtering for Ultrasound Imaging and Video, Volume II

Selected Applications, Second Edition

By: Christos P. Loizou,Constantinos S. Pattichis

In ultrasound imaging and video visual perception is hindered by speckle multiplicative noise that degrades the quality. Noise reduction is therefore essential for improving the visual observation quality or as a pre-processing step for further automated analysis, such as image/video segmentation, texture analysis and encoding in ultrasound imaging and video. The goal of the first book (book 1 of 2 books) was to introduce the problem of speckle in ultrasound image and video as well as the theoretical background, algorithmic steps, and the MatlabTM for the following group of despeckle filters: linear despeckle filtering, non-linear despeckle filtering, diffusion despeckle filtering, and wavelet despeckle filtering. The goal of this book (book 2 of 2 books) is to demonstrate the use of a comparative evaluation framework based on these despeckle filters (introduced on book 1) on cardiovascular ultrasound image and video processing and analysis. More specifically, the despeckle filtering evaluation framework is based on texture analysis, image quality evaluation metrics, and visual evaluation by experts. This framework is applied in cardiovascular ultrasound image/video processing on the tasks of segmentation and structural measurements, texture analysis for differentiating between two classes (i.e. normal vs disease) and for efficient encoding for mobile applications. It is shown that despeckle noise reduction improved segmentation and measurement (of tissue structure investigated), increased the texture feature distance between normal and abnormal tissue, improved image/video quality evaluation and perception and produced significantly lower bitrates in video encoding. Furthermore, in order to facilitate further applications we have developed in MATLABTM two different toolboxes that integrate image (IDF) and video (VDF) despeckle filtering, texture analysis, and image and video quality evaluation metrics. The code for these toolsets is open source and these are available to download complementary to the two monographs.

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156

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Springer Nature

Published Date

ISBN 10

303101524X

ISBN 13

9783031015243

Chaotic Systems

Theory and Applications

By: Christos H. Skiadas,Ioannis Dimotikalis

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Chaotic Systems

Theory and Applications

By: Christos H. Skiadas,Ioannis Dimotikalis

This volume contains a collection of papers suggested by the Scientific Committee that includes the best papers presented in the 2nd International Conference (CHAOS2009) on Chaotic Modeling, Simulation and Applications, that was held in Chania, Crete, Greece, June 15, 2009. The aim of the conference was to invite and bring together people working in interesting topics of chaotic modeling, nonlinear and dynamical systems and chaotic simulation. The volume presents theoretical and applied contributions on chaotic systems. Papers from several nonlinear analysis and chaotic fields are included and new and very important results are presented. Emphasis was given to the selection of works that have significant impact in the chaotic field and open new horizons to further develop related topics and subjects. Even more the selected papers are addressed to an interdisciplinary audience aiming at the broad dissemination of the theory and practice of chaotic modeling and simulation and nonlinear science.

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411

Publisher

World Scientific

Published Date

ISBN 10

9814299715

ISBN 13

9789814299718

Radio Propagation and Adaptive Antennas for Wireless Communication Links

Terrestrial, Atmospheric and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

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Radio Propagation and Adaptive Antennas for Wireless Communication Links

Terrestrial, Atmospheric and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

Antennas and Propogation for Wireless Communication covers the basics of wireless communication system design with emphasis on antennas and propagation. It contains information on antenna fundamentals and the latest developments in smart antennas, as well as the radiation effects of hand-held devices. Antennas and Propogation for Wireless Communication provides a complete discussion of all the topics important to the design of wireless communication systems. Written by acknowledged authorities in their respective fields, the book deals with practical applications and presents real world examples. A solutions manual for college adopters accompanies the text. Ideal for engineers working in communication, antennas, and propagation for telecomm, military, and aerospace applications, as well as students of electrical engineering, this book covers all topics needed for a complete system design.

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637

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John Wiley & Sons

Published Date

ISBN 10

0470069988

ISBN 13

9780470069981

Design of Reconfigurable Antennas Using Graph Models

By: Joseph Costantine,Youssef Tawk,Christos Christodoulou

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Design of Reconfigurable Antennas Using Graph Models

By: Joseph Costantine,Youssef Tawk,Christos Christodoulou

This lecture discusses the use of graph models to represent reconfigurable antennas. The rise of antennas that adapt to their environment and change their operation based on the user's request hasn't been met with clear design guidelines. There is a need to propose some rules for the optimization of any reconfigurable antenna design and performance. Since reconfigurable antennas are seen as a collection of self-organizing parts, graph models can be introduced to relate each possible topology to a corresponding electromagnetic performance in terms of achieving a characteristic frequency of operation, impedance, and polarization. These models help designers understand reconfigurable antenna structures and enhance their functionality since they transform antennas from bulky devices into mathematical and software accessible models. The use of graphs facilitates the software control and cognition ability of reconfigurable antennas while optimizing their performance. This lecture also discusses the reduction of redundancy, complexity and reliability of reconfigurable antennas and reconfigurable antenna arrays. The full analysis of these parameters allows a better reconfigurable antenna implementation in wireless and space communications platforms. The use of graph models to reduce the complexity while preserving the reliability of reconfigurable antennas allow a better incorporation in applications such as cognitive radio, MIMO, satellite communications, and personal communication systems. A swifter response time is achieved with less cost and losses. This lecture is written for individuals who wish to venture into the field of reconfigurable antennas, with a little prior experience in this area, and learn how graph rules and theory, mainly used in the field of computer science, networking, and control systems can be applied to electromagnetic structures. This lecture will walk the reader through a design and analysis process of reconfigurable antennas using graph models with a practical and theoretical outlook.

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136

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Springer Nature

Published Date

ISBN 10

3031015401

ISBN 13

9783031015403

Topics on Chaotic Systems

Selected Papers from CHAOS 2008 International Conference, Chania, Crete, Greece, 3-6 June 2008

By: Christos H. Skiadas

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Topics on Chaotic Systems

Selected Papers from CHAOS 2008 International Conference, Chania, Crete, Greece, 3-6 June 2008

By: Christos H. Skiadas

This volume includes the best papers presented at the CHAOS 2008 International Conference on Chaotic Modeling, Simulation and Applications. It provides a valuable collection of new ideas, methods, and techniques in the field of nonlinear dynamics, chaos, fractals and their applications in general science and in engineering sciences. It touches on many fields such as chaos, dynamical systems, nonlinear systems, fractals and chaotic attractors. It also covers mechanics, hydrofluid dynamics, chaos in meteorology and cosmology, Hamiltonian and quantum chaos, chaos in biology and genetics, chaotic control, and chaos in economy and markets, and chaotic simulations; thus, containing cutting-edge interdisciplinary research with high-interest applications. These contributions present new solutions by analyzing the relevant data and through the use of recent advances in different fields, especially in chaotic simulation methods and techniques.

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435

Publisher

World Scientific

Published Date

ISBN 10

9814271349

ISBN 13

9789814271349

Epic Grief

Personal Laments in Homer's Iliad

By: Christos Tsagalis

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Epic Grief

Personal Laments in Homer's Iliad

By: Christos Tsagalis

This study of the gooi or personal laments in Homer ́s Iliad once and for all articulates the poetic techniques regulating this type of speech. Going beyond the tendency to view lament as a repetitive and group-based activity, this work shows instead the primacy of the goos, a sub-genre which the Iliad has "produced" by absorbing the funerary genre of lament. Oral theory, narratology, semiotics, rhetorical analysis are deftly applied to explore the ways personal laments develop principal epic themes and unravel narrative threads weaving the thematical texture of the entire Iliad (and beyond): the wrath of Achilles, the deaths of Patroclus and Hector, the grief of Achilles and his future death, the foreshadowing of Troy ́s destruction. Winner of the Annual Award in Classics (2007) of the Academy of Athens.

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244

Publisher

Walter de Gruyter

Published Date

ISBN 10

3110896257

ISBN 13

9783110896251

Geophysical Phenomena and the Alexandrian Littoral

By: Niki Evelpidou,Christos Repapis,Harry Tzalas,Costas Synolakis

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Geophysical Phenomena and the Alexandrian Littoral

By: Niki Evelpidou,Christos Repapis,Harry Tzalas,Costas Synolakis

This book presents the geomorphology and recent geoarchaeological history of Alexandria which has been repeatedly struck by natural disasters. The Coastal area offers archaeological evidence (burial sites, quarry activities and ancient building remnants), as well as geomorphological features, all revealing a complex evolution of the coastal zone.

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146

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Archaeopress Publishing Ltd

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ISBN 10

1789692350

ISBN 13

9781789692358

Chaos Theory

Modeling, Simulation and Applications : Selected Papers from the 3rd Chaotic Modeling and Simulation Conference (CHAOS2010), Chania, Crete, Greece, 1-4 June 2010

By: Christos H. Skiadas,Ioannis Dimotikalis

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Chaos Theory

Modeling, Simulation and Applications : Selected Papers from the 3rd Chaotic Modeling and Simulation Conference (CHAOS2010), Chania, Crete, Greece, 1-4 June 2010

By: Christos H. Skiadas,Ioannis Dimotikalis

The work done in chaotic modeling and simulation during the last decades has changed our views of the world around us and has introduced new scientific tools, methods and techniques. Advanced topics of these achievements are included in this volume on Chaos Theory which focuses on Chaotic Modeling, Simulation and Applications of the nonlinear phenomena. This volume includes the best papers presented in the 3rd International Conference on CHAOS. This interdisciplinary conference attracted people from many scientific fields dealing with chaos, nonlinear dynamics, fractals and the works presented and the papers included here are of particular interest that could provide a broad understanding of chaos in its various forms. The chapters relate to many fields of chaos including Dynamical and Nonlinear Systems, Attractors and Fractals. Hydro-Fluid Dynamics and Mechanics, Chaos in Meteorology and Cosmology, Chaos in Biology and Genetics, Chaotic Control, Chaos in Economy and Markets, and Computer Composition and Chaotic Simulations, including related applications, are presented.

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467

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World Scientific

Published Date

ISBN 10

9814350338

ISBN 13

9789814350334

Introduction to Radio Engineering

By: Nathan Blaunstein,Christos Christodoulou,Mikhail Sergeev

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Introduction to Radio Engineering

By: Nathan Blaunstein,Christos Christodoulou,Mikhail Sergeev

The book introduces the basic foundations of high mathematics and vector algebra. Then, it explains the basic aspects of classical electrodynamics and electromagnetism. Based on such knowledge readers investigate various radio propagation problems related to guiding structures connecting electronic devices with antenna terminals placed at the different radar systems. It explains the role of antennas in process of transmission of radio signals between the terminals. Finally, it shows the relation between the main operational charactistics of each kind of radar and the corresponding knowledge obtained from the previous chapters.

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351

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CRC Press

Published Date

ISBN 10

1315350084

ISBN 13

9781315350080

The Soils of Greece

By: Nicholas Yassoglou,Christos Tsadilas,Costas Kosmas

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The Soils of Greece

By: Nicholas Yassoglou,Christos Tsadilas,Costas Kosmas

This book presents a comprehensive and up-to-date overview on soils of Greece. It includes sections on soil research history, climate, geology, geomorphology, major soil types, soil maps, soil properties, soil classification, soil fertility, land use and vegetation, soil management, soils and humans, soils and industry, future soil issues. The book summarizes what is known about the soils in Greece in a concise and highly reader-friendly way.

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121

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Springer

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ISBN 10

3319533347

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9783319533346

Support Vector Machines for Antenna Array Processing and Electromagnetics

By: Manel Martínez-Ramón,Christos Christodoulou

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Support Vector Machines for Antenna Array Processing and Electromagnetics

By: Manel Martínez-Ramón,Christos Christodoulou

Support Vector Machines (SVM) were introduced in the early 90's as a novel nonlinear solution for classification and regression tasks. These techniques have been proved to have superior performances in a large variety of real world applications due to their generalization abilities and robustness against noise and interferences. This book introduces a set of novel techniques based on SVM that are applied to antenna array processing and electromagnetics. In particular, it introduces methods for linear and nonlinear beamforming and parameter design for arrays and electromagnetic applications.

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120

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Morgan & Claypool Publishers

Published Date

ISBN 10

1598290258

ISBN 13

9781598290257

Radio Propagation and Adaptive Antennas for Wireless Communication Links

Terrestrial, Atmospheric and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

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Radio Propagation and Adaptive Antennas for Wireless Communication Links

Terrestrial, Atmospheric and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

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637

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John Wiley & Sons

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0470069988

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9780470069981

Introduction to Radio Engineering

By: Nathan Blaunstein,Christos Christodoulou,Mikhail Sergeev

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Introduction to Radio Engineering

By: Nathan Blaunstein,Christos Christodoulou,Mikhail Sergeev

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351

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CRC Press

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ISBN 10

1315350084

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9781315350080

Radio Propagation and Adaptive Antennas for Wireless Communication Networks

Terrestrial, Atmospheric, and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

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Radio Propagation and Adaptive Antennas for Wireless Communication Networks

Terrestrial, Atmospheric, and Ionospheric

By: Nathan Blaunstein,Christos G. Christodoulou

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John Wiley & Sons

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ISBN 10

1118816722

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9781118816721

Design of Reconfigurable Antennas Using Graph Models

By: Joseph Costantine,Youssef Tawk,Christos G. Christodoulou

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Design of Reconfigurable Antennas Using Graph Models

By: Joseph Costantine,Youssef Tawk,Christos G. Christodoulou

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150

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Morgan & Claypool Publishers

Published Date

ISBN 10

1627050256

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9781627050258

Fundamentals of Antennas

Concepts and Applications

By: Christos G. Christodoulou,Parveen F. Wahid

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Fundamentals of Antennas

Concepts and Applications

By: Christos G. Christodoulou,Parveen F. Wahid

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112

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SPIE Press

Published Date

ISBN 10

0819441120

ISBN 13

9780819441126

Design of Reconfigurable Antennas Using Graph Models

By: Joseph Costantine,Youssef Tawk,Christos Christodoulou

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Design of Reconfigurable Antennas Using Graph Models

By: Joseph Costantine,Youssef Tawk,Christos Christodoulou

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136

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Springer Nature

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ISBN 10

3031015401

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9783031015403

Support Vector Machines for Antenna Array Processing and Electromagnetics

By: Manel Martínez-Ramón,Christos Christodoulou

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Support Vector Machines for Antenna Array Processing and Electromagnetics

By: Manel Martínez-Ramón,Christos Christodoulou

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Page Count

110

Publisher

Springer Nature

Published Date

ISBN 10

3031016920

ISBN 13

9783031016929

Support Vector Machines for Antenna Array Processing and Electromagnetics

By: Manel Martínez-Ramón,Christos G. Christodoulou

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Support Vector Machines for Antenna Array Processing and Electromagnetics

By: Manel Martínez-Ramón,Christos G. Christodoulou

Since the 1990s there has been significant activity in the theoretical development and applications of Support Vector Machines (SVMs). The theory of SVMs is based on the cross-pollenization of optimization theory, statistical learning, kernel theory, and algorithmics. So far, machine learning has largely been devoted to solving problems relating to data mining, text categorization, and pattern/facial recognition but not so much in the field of electromagnetics. Recently, however, popular binary machine learning algorithms, including support vector machines (SVM), have successfully been applied to wireless communication problems, notably spread spectrum receiver design and channelequalization.The aim of this book is to gently introduce support vector machines in its linear and non linear form, both as regressors and as classifiers, and to show how they can be applied to several antenna array processing problems and electromagnetics in general.The lecture is divided into three main parts. The first three chapters cover the theory of SVMS, both as classifiers and regressors. The next three chapters deal with applications in antenna array processing and other areas in electromagnetics. The four appendices at the end of the book comprise the last part. The inclusion of MATLAB files will help readers start their application of the algorithms covered in the book.

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Page Count

121

Publisher

Morgan & Claypool Publishers

Published Date

ISBN 10

159829024X

ISBN 13

9781598290240

Antenna Design for Cognitive Radio

By: Youssef Tawk,Joseph Costantine,Christos Christodoulou

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Antenna Design for Cognitive Radio

By: Youssef Tawk,Joseph Costantine,Christos Christodoulou

This one-of-a-kind new resource presents cognitive radio from an antenna design perspective and introduces the concept of cognitive radio as a protocol that benefits from under-utilized regions of the spectrum. This book covers topics that govern the operation of a cognitive radio and discusses the use of reconfigurable antennas, reconfigurable filtennas, and MIMO antennas for cognitive radio. The analysis and design of different antenna systems are presented, compared and evaluated. New approaches to improve spectrum efficiency are explored by demonstrating how to design software controlled cognitive radio antenna systems. This new resource shows how to communicate using either interweave or underlay cognitive radio and demonstrates the benefits of designing appropriate sensing and communicating antennas. The first part of the book introduces the basic concept of cognitive radio and discusses the difference between cognitive radio and software defined radio from the RF system 's perspective. The second part of the book discusses the main antenna design requirements, procedures and challenges for cognitive radio. The third part of the book introduces new trends in cognitive radio implementation such as the implementation of MIMO antennas on cognitive radio, the use of machine learning techniques to optimize the performance of a cognitive radio environment, and the implementation of cognitive radar and cognitive radio in space.

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Page Count

289

Publisher

Artech House

Published Date

ISBN 10

1630813699

ISBN 13

9781630813697

Advancement in Microstrip Antennas with Recent Applications

By: Ahmed Kishk

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Advancement in Microstrip Antennas with Recent Applications

By: Ahmed Kishk

The book discusses basic and advanced concepts of microstrip antennas, including design procedure and recent applications. Book topics include discussion of arrays, spectral domain, high Tc superconducting microstrip antennas, optimization, multiband, dual and circular polarization, microstrip to waveguide transitions, and improving bandwidth and resonance frequency. Antenna synthesis, materials, microstrip circuits, spectral domain, waveform evaluation, aperture coupled antenna geometry and miniaturization are further book topics. Planar UWB antennas are widely covered and new dual polarized UWB antennas are newly introduced. Design of UWB antennas with single or multi notch bands are also considered. Recent applications such as, cognitive radio, reconfigurable antennas, wearable antennas, and flexible antennas are presented. The book audience will be comprised of electrical and computer engineers and other scientists well versed in microstrip antenna technology.

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Page Count

396

Publisher

IntechOpen

Published Date

ISBN 10

9535110195

ISBN 13

9789535110194

Book's by Christos Christodoulou

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