Localized waves—also known as non-diffractive waves—are beams and pulses capable of resisting diffraction and dispersion over long distances even in non-guiding media. Predicted to exist in the early 1970s and obtained theoretically and experimentally as solutions to the wave equations starting in 1992, localized waves now garner intense worldwide research with applications in all fields where a role is played by a wave equation, from electromagnetism to acoustics and quantum physics. In the electromagnetics areas, they are paving the way, for instance, to ubiquitous secure communications in the range of millimeter waves, terahertz frequencies, and optics. At last, the localized waves with an envelope at rest are expected to have important applications especially in medicine.

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The Wireless Metropolitan Area Network (WirelessMAN) is a promising Broadband Wireless Access (BWA) technology that provides high-speed, high-bandwidth efficiency and high-capacity multimedia services for both residential and enterprise applications. Mobile WiMAX: Toward Broadband Wireless Metropolitan Area Networks examines the basic concepts, recent advances, and latest standard specifications pertinent to WirelessMANs, placing emphasis on IEEE 802.16-based WiMAX. After introducing the basics of WirelessMAN, the book addresses topics in three accessible parts.

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The book is written for academic and professional researchers designing communication systems for pervasive and low power applications. The main emphasis of the book is on design techniques for low power, highly integrated transceivers. Instead of presenting a single design perspective, this book presents the design philosophies from three diverse research groups, providing three completely different strategies for achieving similar goals.

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“Given its extensive, but very cohesive and accessible coverage…this book could be very well appreciated by both students and specialists in the field.” (Computing Reviews.com, August 1, 2006)

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An international panel of experts provide major research issues and a self-contained, rapid introduction to the theory and application of UWB.

This book delivers end-to-end coverage of recent advances in both the theory and practical design of ultra wideband (UWB) communication networks. Contributions offer a worldwide perspective on new and emerging applications, including WPAN, sensor and ad hoc networks, wireless telemetry, and telemedicine. The book explores issues related to the physical layer, medium access layer, and networking layer.

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This book helps address the skills shortage and support expansion of IPTV across the globe. Telecom operators, wireless mobile providers, cable TV companies, media companies, broadcasters, video production companies, and Internet portal companies worldwide are either offering IP video services or actively investigating their deployment. This book increases the reader’s knowledge of IPTV, which in turn leads to greater confidence in dealing with day-to-day planning and management of IPTV systems.

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Foundations of Voice and Speech Quality Perception starts out with the fundamental question of: “How do listeners perceive voice and speech quality and how can these processes be modeled?” Any quantitative answers require measurements. This is natural for physical quantities but harder to imagine for perceptual measurands. This book approaches the problem by actually identifying major perceptual dimensions of voice and speech quality perception, defining units wherever possible and offering paradigms to position these dimensions into a structural skeleton of perceptual speech and voice quality.

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Rapid advances in electronic and optical technology have enabled the implementation of powerful error-control codes, which are now used in almost the entire range of information systems with close to optimal performance. These codes and decoding methods are required for the detection and correction of the errors and erasures which inevitably occur in digital information during transmission, storage and processing because of noise, interference and other imperfections.

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‘Advanced undergraduate and graduate students, and researchers in the fields of condensed matter physics, materials science, and optical engineering will find this book of interest.’ Materials Today

‘Optics is a multidisciplinary subject with impact on many other branches of physics and engineering. … In this, they have succeeded admirably, providing an up-to-date monograph which includes many useful topics that are not covered in the more standard texts. … an interesting useful book.’ Contemporary Physics

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Automatic speech recognition (ASR) is a very attractive means for human-machine interaction. The degree of maturity reached by speech recognition technologies during recent years allows the development of applications that use them. In particular, ASR shows an enormous potential in mobile environments, where devices such as mobile phones or PDAs are used, and for Internet Protocol (IP) applications.

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