Theory and Applications of OFDM and CDMA is an ideal foundation textbook for those seeking a sound knowledge of this fast-developing field of wideband communications. The advanced transmission techniques of OFDM, applied in wireless LANs and in digital and video broadcasting, and CDMA, the foundation of 3G mobile communications, have been part of almost every communication system that has been designed in recent years, with both offering a high degree of flexibility in adjusting the system to the requirements of the application and to the impairments caused by the transmission channel. Starting from the basics of digital transmission theory, the reader gains a comprehensive overview of the underlying ideas of these techniques and their strengths and weaknesses under various conditions. In this context, the specific requirements of the mobile radio channel and their relevance for the design of digital transmission systems are discussed and related to the items of channel coding and modulation. Clear explanation of the basics of digital communications, mobile radio channels, coding and modulation, OFDM as a multicarrier system and CDMA as an application of spread spectrum techniques Discusses the most important mobile radio and digital broadcasting systems that use OFDM and CDMA, and explains in detail the underlying ideas for the choice of system parameters Progresses from the fundamentals of wideband communication through to modern applications Includes a Companion Website featuring a solutions manual, electronic versions of the figures and other useful resources This volume will be an invaluable resource to advanced undergraduate students and first/second year postgraduates of electrical and engineering and telecommunications. It will also appeal to practising engineers, researchers and those in academia who wish to expand their knowledge on modern aspects of digital communications and systems in a mobile radio environment.
Theory and Applications of OFDM and CDMA is an ideal foundation textbook for those seeking a sound knowledge of this fast-developing field of wideband communications. The advanced transmission techniques of OFDM, applied in wireless LANs and in digital and video broadcasting, and CDMA, the foundation of 3G mobile communications, have been part of almost every communication system that has been designed in recent years, with both offering a high degree of flexibility in adjusting the system to the requirements of the application and to the impairments caused by the transmission channel. Starting from the basics of digital transmission theory, the reader gains a comprehensive overview of the underlying ideas of these techniques and their strengths and weaknesses under various conditions. In this context, the specific requirements of the mobile radio channel and their relevance for the design of digital transmission systems are discussed and related to the items of channel coding and modulation. Clear explanation of the basics of digital communications, mobile radio channels, coding and modulation, OFDM as a multicarrier system and CDMA as an application of spread spectrum techniques Discusses the most important mobile radio and digital broadcasting systems that use OFDM and CDMA, and explains in detail the underlying ideas for the choice of system parameters Progresses from the fundamentals of wideband communication through to modern applications Includes a Companion Website featuring a solutions manual, electronic versions of the figures and other useful resources This volume will be an invaluable resource to advanced undergraduate students and first/second year postgraduates of electrical and engineering and telecommunications. It will also appeal to practising engineers, researchers and those in academia who wish to expand their knowledge on modern aspects of digital communications and systems in a mobile radio environment.
Now the Netflix Limited Series Unbelievable, starring Toni Collette, Merritt Wever, and Kaitlyn Dever • Two Pulitzer Prize-winning journalists tell the riveting true crime story of a teenager charged with lying about having been raped—and the detectives who followed a winding path to arrive at the truth. “Gripping . . . [with a] John Grisham–worthy twist.”—Emily Bazelon, New York Times Book Review (Editors’ Choice) On August 11, 2008, eighteen-year-old Marie reported that a masked man broke into her apartment near Seattle, Washington, and raped her. Within days police and even those closest to Marie became suspicious of her story. The police swiftly pivoted and began investigating Marie. Confronted with inconsistencies in her story and the doubts of others, Marie broke down and said her story was a lie—a bid for attention. Police charged Marie with false reporting, and she was branded a liar. More than two years later, Colorado detective Stacy Galbraith was assigned to investigate a case of sexual assault. Describing the crime to her husband that night, Galbraith learned that the case bore an eerie resemblance to a rape that had taken place months earlier in a nearby town. She joined forces with the detective on that case, Edna Hendershot, and the two soon discovered they were dealing with a serial rapist: a man who photographed his victims, threatening to release the images online, and whose calculated steps to erase all physical evidence suggested he might be a soldier or a cop. Through meticulous police work the detectives would eventually connect the rapist to other attacks in Colorado—and beyond. Based on investigative files and extensive interviews with the principals, A False Report is a serpentine tale of doubt, lies, and a hunt for justice, unveiling the disturbing truth of how sexual assault is investigated today—and the long history of skepticism toward rape victims.
Now the Netflix Limited Series Unbelievable, starring Toni Collette, Merritt Wever, and Kaitlyn Dever • Two Pulitzer Prize-winning journalists tell the riveting true crime story of a teenager charged with lying about having been raped—and the detectives who followed a winding path to arrive at the truth. “Gripping . . . [with a] John Grisham–worthy twist.”—Emily Bazelon, New York Times Book Review (Editors’ Choice) On August 11, 2008, eighteen-year-old Marie reported that a masked man broke into her apartment near Seattle, Washington, and raped her. Within days police and even those closest to Marie became suspicious of her story. The police swiftly pivoted and began investigating Marie. Confronted with inconsistencies in her story and the doubts of others, Marie broke down and said her story was a lie—a bid for attention. Police charged Marie with false reporting, and she was branded a liar. More than two years later, Colorado detective Stacy Galbraith was assigned to investigate a case of sexual assault. Describing the crime to her husband that night, Galbraith learned that the case bore an eerie resemblance to a rape that had taken place months earlier in a nearby town. She joined forces with the detective on that case, Edna Hendershot, and the two soon discovered they were dealing with a serial rapist: a man who photographed his victims, threatening to release the images online, and whose calculated steps to erase all physical evidence suggested he might be a soldier or a cop. Through meticulous police work the detectives would eventually connect the rapist to other attacks in Colorado—and beyond. Based on investigative files and extensive interviews with the principals, Unbelievable is a serpentine tale of doubt, lies, and a hunt for justice, unveiling the disturbing truth of how sexual assault is investigated today—and the long history of skepticism toward rape victims. Previously published as A False Report
An examination of the sacred botany and the pagan origins and rituals of Christmas • Analyzes the symbolism of the many plants associated with Christmas • Reveals the shamanic rituals that are at the heart of the Christmas celebration The day on which many commemorate the birth of Christ has its origins in pagan rituals that center on tree worship, agriculture, magic, and social exchange. But Christmas is no ordinary folk observance. It is an evolving feast that over the centuries has absorbed elements from cultures all over the world--practices that give plants and plant spirits pride of place. In fact, the symbolic use of plants at Christmas effectively transforms the modern-day living room into a place of shamanic ritual. Christian Rätsch and Claudia Müller-Ebeling show how the ancient meaning of the botanical elements of Christmas provides a unique view of the religion that existed in Europe before the introduction of Christianity. The fir tree was originally revered as the sacred World Tree in northern Europe. When the church was unable to drive the tree cult out of people’s consciousness, it incorporated the fir tree by dedicating it to the Christ child. Father Christmas in his red-and-white suit, who flies through the sky in a sleigh drawn by reindeer, has his mythological roots in the shamanic reindeer-herding tribes of arctic Europe and Siberia. These northern shamans used the hallucinogenic fly agaric mushroom, which is red and white, to make their soul flights to the other world. Apples, which figure heavily in Christmas baking, are symbols of the sun god Apollo, so they find a natural place at winter solstice celebrations of the return of the sun. In fact, the authors contend that the emphasis of Christmas on green plants and the promise of the return of life in the dead of winter is just an adaptation of the pagan winter solstice celebration.
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