Mobile And Personal Communication Systems And Services

Raj Pandya, international expert in Universal Personal Telecommunications (UPT), guides you through the past, present, and future of mobile and personal communication systems. Telecommunications professionals and students will find a comprehensive discussion of mobile telephone, data, and multimedia services, and how the evolution toward next-generation systems will shape tomorrow s mobile communications industry. A broad systems overview combined with carefully selected technical details give you a clear understanding of the basic technology, architecture, and applications associated with mobile communications. You ll learn valuable information on numbering, identities, and performance benchmarks to help you plan and design mobile systems and networks. A timely discussion of underlying regional and international standards will keep you informed of the influences at work in the industry today. You'll also gain essential insights into the future direction of mobile and personal communications from an in-depth analysis of: International Mobile Telecommunications 2000 (IMT-2000) Global Mobile Satellite Systems Universal Personal Telecommunications Mobile Data Communications The outlook for GSM, IS-136, and IS-95. MOBILE AND PERSONAL COMMUNICATION SERVICES AND SYSTEMS is indispensable reading for anyone who wants to understand what lies ahead for this rapidly evolving technology.

17 Structural Crises of Meaning and New Technologies: Reframing the Public and the Private in the News Media through the Expansion of Voices by Social Networks -- 18 A Starting Path for a Great Future -- List of Contributors -- Index

During the past decade there has been a dramatic change in the nature of mobile communications technology and its impact on the general communic ations environment. In the 1970s, mobile radio was a minority activity in communications, based on relatively unsophisticated technology. The 1980s, however, have seen the emergence of analogue cellular systems and the definition of future digital systems, and the predicted demand for these services is such that investigations into the use of higher frequency bands have already begun. It is predicted that, by the late 1990s, the 'personal communications' world will have resulted in the majority of adults in Europe and North America being dependent on radio-connected terminals of various kinds for more than 50% of their total telecommunications needs. The technology which will form the basis of this revolution has now been defined, at least in outline, and the fixed and mobile equipment that will be used in systems of the future will bear little resemblance to that available even ten years ago. It is impossible within the confines of a single, relatively short book to cover all the subject areas needed for a study of this exciting and expanding field of technology. We have, perforce, been selective and have chosen those topics which we believe to be of primary importance at the present time.

With the increasing need for more effective and efficient responses to man-made and natural public safety threats, the necessity for improved private mobile and commercial wireless digital communication systems has become apparent. This one-of-a-kind resource describes today's public safety communication requirements and radio systems from a technical perspective, and shows you how communication systems are evolving to meet the growing demands of multimedia wireless applications.

This non-technical overview of the industry focuses on the emergence of wireless technologies, such as cellular telephones and mobile satellite services, and their perceived impact on personal as well as professional relationships in the coming decades. The book provides a detailed, well organized discussion of the major issues and long-term opportunities in wireless personal communications.

In this book, the state-of-the-art and future vision of wireless communications is presented in the form of a number of new services. Wireless personal communications is clearly a different service than today's cellular radio or cordless telephone, but there is an evolutionary connection between the three services. This book addresses questions about what features of personal communication services (PCS) will be met by existing or enhanced digital cellular radio technology. The regulatory and standards aspects of wireless communications are currently in a crucial stage of their formulation. A section of the book is devoted to the opinions of representatives from regulatory agencies and standards organizations on the future of this critical area. One of the most intriguing questions about the future of wireless communications has to do with the choice of multiple access technique. The trade offs between time division multiple access (TDMA) and code division multiple access (CDMA) have been the topic of many a heated discussion amongst members of the wireless community. This book presents a thorough discussion of a number of the topics which are instrumental in making a fair comparison of TDMA and CDMA; these topics include: analytical performance evaluation techniques, capacity studies, equalization requirements, and shared spectrum comparisons. Many of the technologies associated with wireless personal communications are reaching the design stages. This book presents a number of alternatives for designs of both base stations and user terminals. Some of the key questions of equalization, control channel requirements, multi-path diversity and channel allocation strategies have been addressed. Invariably, system designs and performance are tied to the characteristics of the radio channel. This book introduces several novel techniques for predicting propagation and system performance in a variety of indoor and outdoor environments. These techniques include analytical as well as computer simulation algorithms for predicting signal strenghts and other channel parameters based on the local topographical features. This book serves as an excellent reference source and may be used as a text for advanced courses on wireless communications, cellular radio, or digital mobile radio.

Many wireless systems like GSM, GPRS, UMTS, Bluetooth, WLAN or WiMAX offer possibilities to keep people connected while on the move. In this flood of technology and claims that one single resource will serve all our needs, this book seeks to enable readers to examine and understand each technology, and how to utilise several different systems for the best results. Communication Systems for the Mobile Information Society not only contains a technical description of the different wireless systems available today, but also explains the thoughts that are behind the different mechanisms and implementations; not only the 'how' but also the 'why' is in focus. Thus the advantages and also limitations of each technology become apparent. Provides readers with a solid introduction to major global wireless standards and compares the different wireless technologies and their applications Describes the different systems based on the standards, their practical implementation and the design assumptions that were made The performance and capacity of each system in practice is analyzed and explained, accompanied with practical tips on how to discover the functionality of different networks by the readers themselves Questions at the end of each chapter and answers on the accompanying website make this book ideal for self study or as course material Illustrated with many realistic examples of how mobile people can stay in touch with other people, the Internet and their corporate intranet This book is an essential resource for telecommunication engineers, professionals and computer science and electrical engineering students who want to get a thorough end-to-end understanding of the different technical concepts of the systems on the market today.