Today all computers, from tablet/desktop computers to super computers, work in parallel. A basic knowledge of the architecture of parallel computers and how to program them, is thus, essential for students of computer science and IT professionals. In its second edition, the book retains the lucidity of the first edition and has added new material to reflect the advances in parallel computers. It is designed as text for the final year undergraduate students of computer science and engineering and information technology. It describes the principles of designing parallel computers and how to program them. This second edition, while retaining the general structure of the earlier book, has added two new chapters, ‘Core Level Parallel Processing’ and ‘Grid and Cloud Computing’ based on the emergence of parallel computers on a single silicon chip popularly known as multicore processors and the rapid developments in Cloud Computing. All chapters have been revised and some chapters are re-written to reflect the emergence of multicore processors and the use of MapReduce in processing vast amounts of data. The new edition begins with an introduction to how to solve problems in parallel and describes how parallelism is used in improving the performance of computers. The topics discussed include instruction level parallel processing, architecture of parallel computers, multicore processors, grid and cloud computing, parallel algorithms, parallel programming, compiler transformations, operating systems for parallel computers, and performance evaluation of parallel computers.
Practical design and performance solutions for every ad hoc wireless network Ad Hoc Wireless Networks comprise mobile devices that use wireless transmission for communication. They can be set up anywhere and any time because they eliminate the complexities of infrastructure setup and central administration-and they have enormous commercial and military potential. Now, there's a book that addresses every major issue related to their design and performance. Ad Hoc Wireless Networks: Architectures and Protocols presents state-of-the-art techniques and solutions, and supports them with easy-to-understand examples. The book starts off with the fundamentals of wireless networking (wireless PANs, LANs, MANs, WANs, and wireless Internet) and goes on to address such current topics as Wi-Fi networks, optical wireless networks, and hybrid wireless architectures. Coverage includes: Medium access control, routing, multicasting, and transport protocols QoS provisioning, energy management, security, multihop pricing, and much more In-depth discussion of wireless sensor networks and ultra wideband technology More than 200 examples and end-of-chapter problems Ad Hoc Wireless Networks is an invaluable resource for every network engineer, technical manager, and researcher designing or building ad hoc wireless networks.
This book introduces the concepts and state-of-the-art research developments of resource management in real-time systems and networks. Real-time systems and networks are of increasing importance in many applications, including automated factories, telecommunication systems, defense systems, and space systems. This book introduces the concepts and state-of-the-art research developments of resource management in real-time systems and networks. Unlike other texts in the field, it covers the entire spectrum of issues in resource management, including task scheduling in uniprocessor real-time systems; task scheduling, fault-tolerant task scheduling, and resource reclaiming in multiprocessor real-time systems; conventional task scheduling and object-based task scheduling in distributed real-time systems; message scheduling; QoS routing; dependable communication; multicast communication; and medium access protocols in real-time networks. It provides algorithmic treatments for all of the issues addressed, highlighting the intuition behind each algorithm and giving examples. The book also includes two chapters of case studies.
This book presents the state of the art results on modeling and analysis of OBS networks. It provides researchers with new directions for future research and helps them gain a better understanding of modeling OBS networks. This book classifies all the literature on modeling and analysis of OBS networks and serves as a thought provoking material for the researchers working on the analysis of high-speed networks. The scope of this book however is not limited to OBS networks alone but extends to high-speed communication networks with limited or no buffers.
The industry dealing with wireless communications has experienced an unprecedented boom throughout the past several years. Thanks to the possibilities of wireless technology, it is feasible to connect with almost every point on Earth's surface from almost anywhere. Hundreds of millions of people use the internet to communicate and exchange data every day. A variety of wireless communication devices, including pagers, mobile phones, laptops, and PDAs, are utilised by these individuals for this purpose. The phenomenal success of wireless phone and message services makes the transition to wireless communication in the realm of personal and corporate computers all the more predictable. Because there will be no longer be any restrictions imposed by wired networks, people will be able to access and exchange information globally from almost any place they can imagine. Alternatively stated, a Mobile Ad hoc Network (MANET) [Agrawal2002, Cordeiro2002, Perkins2001] is a network that may be instantaneously formed without relying on preexisting infrastructure or additional permanent stations. Put simply, it is a network that can be constructed as needed. To give this argument more structure, we can say that an ad hoc network (abbreviated as "ad hoc") is a self-governing system consisting of mobile hosts (MHs) that act as routers and are linked to each other via wireless connections. The combination of different MHs yields a communication network represented by an arbitrary communication graph. In contrast, by repurposing base stations (BSs) as access points, the famous single-hop cellular network architecture may meet the needs of wireless communication. That is not the case, though, as was previously stated. The only means for two mobile nodes in a modern cellular network to communicate with each other are through the cable backbone and the fixed base stations. A MANET lacks this kind of infrastructure, and the topology of the network might alter in an unforeseen way due to its increased dynamic nature, as nodes are free to move around. This is due to the fact that MANETs are more dynamic. Regarding their mode of operation, ad hoc networks are essentially just peer-to-peer multihop mobile wireless networks. As seen in Figure 1.1, these networks are designed to carry data packets using a store-and-forward technique, which involves transferring them from one location to another via intermediate nodes. Packet forwarding over the network does this. Since the MHs are in motion, the other nodes in the network must be informed of the ensuing topological change. This occurs as a result of the MHs' mobility. Because of this, you can choose to keep the old topological data or delete it. When nodes in the network change their point of attachment, like the MH2 node in Figure 1.1 does, from MH3 to MH4, other nodes should utilise this new channel to send packets to the MH2 node.
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