Kategoria BISAC: Technology & Engineering >> Telecommunications

WiMAX Broadband Wireless Access Technology, based on the IEEE 802.16 standard, is at the origin of great promises for many different markets covering fixed wireless Internet Access, Backhauling and Mobile cellular networks. WiMAX technology is designed for the transmission of multimedia services (voice, Internet, email, games and others) at high data rates (of the order of Mb/s per user). It is a very powerful but sometimes complicated technique.

The WiMAX System is described in thousands of pages of IEEE 802.16 standard and amendments documents and WiMAX Forum documents. WiMAX: Technology...

"Coding for MIMO Communication Systems" is a comprehensive introduction and overview to the various emerging coding techniques developed for MIMO communication systems. The basics of wireless communications and fundamental issues of MIMO channel capacity are introduced and the space-time block and trellis coding techniques are covered in detail. Other signaling schemes for MIMO channels are also considered, including spatial multiplexing, concatenated coding and iterative decoding for MIMO systems, and space-time coding for non-coherent MIMO channels. Practical issues including channel...

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.

Error-control coding is a complex, novel and unfamiliar area, not yet widely understood and appreciated. This book sets out...

An essential element of radio technology and propagation is how to use radio technology and knowledge of radio propagation to design a network that meets the needs of customers. Mobile Radio Network Design in the VHF and UHF Bands provides the technical and fundamental knowledge required for advanced mobile radio network design to achieve this in terms that the engineer will understand, and augments this with essential information gleaned from the authors' extensive experience in mobile radio network design.

In this book you will find out how some of the most highly-regarded radio...

Finally a comprehensive overview of speech quality in VoIP from the user's perspective

Speech Quality of VoIP is an essential guide to assessing the speech quality of VoIP networks, whilst addressing the implications for the design of VoIP networks and systems. This book bridges the gap between the technical network-world and the psychoacoustic world of quality perception. Alexander Raake's unique perspective combines awareness of the technical characteristics of VoIP networks and original research concerning the perception of speech transmitted across them.

Starting...

Offers a comprehensive and practical reference guide to antenna design and engineering for portable devices

Antennas are often the most bulky components in many portable wireless devices such as mobile phones. Whilst the demand for ever smaller and more powerful wireless devices increases, as does the importance of designing and engineering smaller antennas to fit these devices.

Antennas for Portable Devices provides a complete and cutting-edge guide to the design and engineering of small antennas for portable electronic devices such as mobile phone handsets, laptop...

Principles of Ad Hoc Networking presents a systematic introduction to the fundamentals of ad hoc networks.

An ad-hoc network is a small network, especially one with wireless or temporary plug-in connections. Typically, some of the network devices are part of the network only for the duration of a communications session or, in the case of mobile or portable devices, while in some close proximity to the rest of the network. These networks can range from small and static systems with constrained power resources to larger-scale dynamic and mobile environments. Wireless ad hoc networks...

The definitive assessment of how wireless communications will evolve over the next 20 years.

Predicting the future is an essential element for almost everyone involved in the wireless industry. Manufacturers predict the future when they decide on product lines to develop or research to undertake, operators when they buy licences and deploy networks, and academics when they set PhD topics. Wireless Communications: The Future provides a solid, clear and well-argued basis on which to make these predictions.

Starting with a description of the current situation and a...

A complete and practical guide to WCDMA/UMTS cellular network deployment.

After introducing the network architecture of such a system, the WCDMA (UMTS) Deployment Handbook defines the coverage and capacity concepts associated with the dimensioning and design phases. Progressing to a discussion of the main system parameters associated with network optimization and detailing optimization techniques for the main services supported by UMTS, and includes the specifics of indoor deployment and HSDPA networks evolution.

• Covers all stages from planning to optimization...

This volume takes a personal approach to mobile content management, focusing on the consumer point of view. The authors consider all aspects from software architecture to end-user needs on mobile personal content, taking a multi-disciplinary angle.

A wireless sensor network (WSN) uses a number of autonomous devices to cooperatively monitor physical or environmental conditions via a wireless network. Since its military beginnings as a means of battlefield surveillance, practical use of this technology has extended to a range of civilian applications including environmental monitoring, natural disaster prediction and relief, health monitoring and fire detection. Technological advancements, coupled with lowering costs, suggest that wireless sensor networks will have a significant impact on 21st century life.

The design of wireless...

A quarter century of research into deep space and near Earth optical communications

This book captures a quarter century of research and development in deep space optical communications from the Jet Propulsion Laboratory (JPL). Additionally, it presents findings from other optical communications research groups from around the world for a full perspective. Readers are brought up to date with the latest developments in optical communications technology, as well as the state of the art in component and subsystem technologies, fundamental limitations, and approaches to develop and...

JPL spacecraft antennas-from the first Explorer satellite in 1958 to current R & D

Spaceborne Antennas for Planetary Exploration covers the development of Jet Propulsion Laboratory (JPL) spacecraft antennas, beginning with the first Explorer satellite in 1958 through current research and development activities aimed at future missions. Readers follow the evolution of all the new designs and technological innovations that were developed to meet the growing demands of deep space exploration.

The book focuses on the radio frequency design and performance of antennas,...

With forewords by Jan Bosch, Nokia and Antero Taivalsaari, Sun Microsystems.

Learn how to programme the mobile devices of the future

The importance of mobile systems programming has emerged over the recent years as a new domain in software development. The design of software that runs in a mobile device requires that developers combine the rules applicable in embedded environment; memory-awareness, limited performance, security, and limited resources with features that are needed in workstation environment; modifiability, run-time extensions, and rapid application...

IMS Multimedia Telephony service has been standardized in 3GPP as the replacement of the circuit switched telephony service in cellular networks. The multimedia telephony service consists of several service components such as voice, video and text. 'IMS Multimedia Telephony over Cellular Systems' provides a comprehensive overview of the service that will enable enriched telephony for mobile users. Enriched telephony fulfils the user's desire to communicate in new ways, for example by sharing pictures and video clips.

In addition to an overview of the Multimedia Telephony service, the book...

An increasing reliance on the Internet and mobile communication has deprived us of our usual means of assessing another party's trustworthiness. This is increasingly forcing us to rely on control. Yet the notion of trust and trustworthiness is essential to the continued development of a technology-enabled society.

Trust, Complexity and Control offers readers a single, consistent explanation of how the sociological concept of 'trust' can be applied to a broad spectrum of technology-related areas; convergent communication, automated agents, digital security, semantic web, artificial...

This completely revised and updated edition of the highly successful UMTS Signaling provides a deep insight into all aspects of UMTS signalling. The chapter structure has been reworked for improved "usability" for readers, as well as including many new features and updates.

The successful trial, deployment, operation and troubleshooting of 3G or UMTS infrastructures and applications is the biggest challenge facing today's mobile communications. Network element instability, network element and multi-vendor interoperability, configuration and network planning faults are just a few of...

A broad overview of the home networking field, ranging from wireless technologies to practical applications

In the future, it is expected that private networks (e.g., home networks) will become part of the global network ecosystem, participating in sharing their own content, running IP-based services, and possibly becoming service providers themselves. This is already happening in the so-called "social networks" and peer-to-peer file sharing networks on the Internet--making this emerging topic one of the most active research areas in the wireless communications field.

This book...

The only book that provides full coverage of UWB multiband OFDM technology

Ultra-wideband (UWB) has emerged as a technology that offers great promise to satisfy the growing demand for low-cost, high-speed digital networks. The enormous bandwidth available, the potential for high data rates, and the promise for small size and low processing power with reduced implementation cost all present a unique opportunity for UWB to become a widely adopted radio solution for future wireless home networking technology.

Ultra-Wideband Communications Systems is the first book to...

This book introduces the reader to the concept of an autonomous software-defined radio (SDR) receiver. Each distinct aspect of the design of the receiver is treated in a separate chapter written by one or more leading innovators in the field. Chapters begin with a problem statement and then offer a full mathematical derivation of an appropriate solution, a decision metric or loop-structure as appropriate, and performance results.