Third-generation (3G) cell-phone technologies have been a long time in coming. But they are with us now and are beginning to make a difference in cellular service, particularly in non-voice applications such as e-mail, Internet access, and video. The 3G technologies include the WCDMA system with its high-speed packet access (HSPA) upgrades, Qualcomm’s cdma2000 technology with its EV-DO systems and Rev A and Rev B upgrades, as well as forthcoming 4G technology known as Long Term Evolution (LTE). With 3G now upon us, it is more important than ever to understand these new systems, how they are designed and how they are applied. This book does a good job of covering this subject.
The primary emphasis is on the ITU’s International Mobile Telecommunications 2000 standard that is developed and maintained by the Third Generation Partnership Project (3GPP). This is a WCDMA system with HSPA upgrades. The evolving LTE technology that will eventually replace the WCDMA system is covered. The book focuses on how to increase the data speed of cellular systems and all the related issues. This is dealt with at the mathematical level but the explanations are very clear. The book includes a great introduction to OFDM and multiple antenna technologies if you are still not up to speed on these essential wireless methods.
A huge portion of the book is devoted to the emerging HSPA technologies slowly being implemented in the US and worldwide. They make the WCDMA systems of today faster and more desirable. The remainder of the book is devoted to the LTE system. A good introduction if you are starting from scratch and a good reference if you are working in this field. I really liked the chapter on other wireless communications systems. A great summary and overview of cdma2000, Rev A and B, Ultra Mobile Broadband (UMB), WiMAX, and the 802.20 system. A big downer is that there’s no coverage of the Chinese TD-SCDMA system, which is becoming a big part of 3G. Nonetheless, it is still recommended.
As wireless and mobile technologies become more and more prevalent in businesses and our daily lives, organizations are starting to heavily invest in developing infrastructure and applications for mobile commerce. Wireless technologies allow users to overcome spatial and temporal constraints when communicating, computing, and conducting business transactions. Mobile Commerce Application Development provides in-depth coverage of the various tools and techniques for developing wireless and mobile applications. The coverage offers readers a working knowledge of the technologies that can be readily applied in their work. Mobile Commerce Application Development serves as an excellent instructional or self-teaching resource by providing clear learning objectives, step-by-step instructions, illustrations, real-world cases, and end-of-chapter exercises and projects
Over the past 20 years UWB has been used for radar, sensing, military communications and niche applications. However, since the FCC ruling in 2002, which allowed the commercial operation of UWB for data communications, UWB has changed dramatically.
Implementation oriented, this volume explores the fundamentals of UWB technology with particular emphasis on impulse radio (IR) techniques. It explains the key physical layer aspects of UWB technology, especially in communications and in control applications, and examines the multiple access (MAC) issues which are emerging as a hot area for practical UWB systems.
UWB Theory and Applications will be indispensable to researchers interested in the practical issues of UWB technology and realistic assumptions of UWB, as well as engineers interested in implementing UWB devices.
The Second Edition of this acclaimed publication enables readers to understand and apply the complex operation principles of global positioning system (GPS) receivers. Although GPS receivers are widely used in everyday life to aid in positioning and navigation, this is the only text that is devoted to complete coverage of their operation principles.
The author, one of the foremost authorities in the GPS field, presents the material from a software receiver viewpoint, an approach that helps readers better understand operation and that reflects the forecasted integration of GPS receivers into such everyday devices as cellular telephones. Concentrating on civilian C/A code, the book provides the tools and information needed to understand and exploit all aspects of receiver technology as well as relevant navigation schemes:
* Overview of GPS basics and the constellation of satellites that comprise the GPS system
* Detailed examination of GPS signal structure, acquisition, and tracking
* Step-by-step presentation of the mathematical formulas for calculating a user’s position
* Demonstration of the use of computer programs to run key equations
* Instructions for developing hardware to collect digitized data for a software GPS receiver
* Complete chapter demonstrating a GPS receiver following a signal flow to determine a user’s position
The Second Edition of this highly acclaimed text has been greatly expanded, including three new chapters:
* Acquisition of weak signals
* Tracking of weak signals
* GPS receiver related subjects
Following the author’s expert guidance and easy-to-follow style, engineers and scientists learn all that is needed to understand, build, and operate GPS receivers. The book’s logical flow from basic concepts to applications makes it an excellent textbook for upper-level undergraduate and graduate students in electrical engineering, wireless communications, and computer science.
The Universal Mobile Telecommunication System (UMTS) offers a consistent set of services to mobile computer and phone users and numerous different radio access technologies will co-exist within the UMTS system’s core network – security is, therefore, of the utmost importance.
The book focuses on the standardized security features of UMTS and brings together material previously only available in specifications, design documents and presentations in one concise form. In addition, this unique volume also covers non-standard implementation specific features that allow differentiation between operators and manufacturers.
By providing a unified treatment of the security services provided by the UMTS system, this volume will provide invaluable information and have instant appeal to planners, constructers and implementers of UMTS networks, and developers and analysts of application oriented security services that make use of UMTS communication networks. It will also be of considerable interest to postgraduates and researchers of modern communication security technology.
As the demand for and the variety of 3G services increase, more advanced hardware and software technologies will be needed to enhance the mobile radio communications infrastructure. This forward-looking book delivers a comprehensive overview of the advanced technologies driving the evolution of mobile radio access networks, focusing on high-level architectural issues and system engineering. The book highlights the advantages and drawbacks of these advanced technologies and helps you make strategic decisions on R&D planning and system deployment.
By striking a balance between theory and practice, and between technology and economics, it addresses the concerns of system engineering, research and development, and telecom management and analysis. The book covers the critical topics you need to understand for your work in the field, from linear transmitters and radio-over-fiber, to software radio base station and mobile terminal positioning. This unique resource examines such cutting-edge technologies as HSDPA, MIMO, OFDM, and IP based RAN, and presents new concepts in both autonomic and ubiquitous networks.