Fading and Shadowing in Wireless Systems

Fading and Shadowing in Wireless Systems
Author: P. Mohana Shankar
Publisher: Springer Science & Business Media
Total Pages: 477
Release: 2011-12-07
Genre: Technology & Engineering
ISBN: 1461403677

The study of signal transmission and deterioration in signal characteristics as the signal propagates through wireless channels is of great significance. The book presents a comprehensive view of channel degradation arising from fading and shadowing. Various statistical models including simple, hybrid, compound, complex and cascaded ones are presented with detailed derivations along with measures to quantify the deterioration such as the amount of fading, error rates and outage probabilities. The models range from the Rayleigh and Rician through Suzuki, generalized K, cascaded and alpha-mu and similar ones. This is followed by the analysis of mitigation of fading and shadowing through diversity (simple, hybrid, micro- and macro- level) and combining algorithms. The density and distribution functions, error rates and outages are derived and results analyzed to quantify the improvements. The effects of co-channel interference before and after the implementation of diversity are also analyzed. To facilitate easy understanding of the models and analysis, the background information in terms of probability and random variables is presented with relevant derivations of densities of linear and nonlinear transformation of random variables, the sums, products, ratios as well as order statistics of random variables of all types. The book also provides material on digital modems of interest in wireless systems. Thus, the book with 1100+ equations and 350+ Matlab generated figures and tables is an ideal source for students, educators, researchers and professionals in wireless communications allowing access to information currently unavailable.

Fading and Shadowing in Wireless Systems

Fading and Shadowing in Wireless Systems
Author: P. Mohana Shankar
Publisher: Springer Science & Business Media
Total Pages: 477
Release: 2011-12-06
Genre: Computers
ISBN: 1461403669

The author explores the impediments to efficient wireless transmission and techniques and proposes ways to mitigate these problems. Problems presented include both fading and shadowing, which increase the possibility of outrage in wireless systems.

Fading and Interference Mitigation in Wireless Communications

Fading and Interference Mitigation in Wireless Communications
Author: Stefan Panic
Publisher: CRC Press
Total Pages: 264
Release: 2013-12-11
Genre: Technology & Engineering
ISBN: 1466508418

The rapid advancement of various wireless communication system services has created the need to analyze the possibility of their performance improvement. Introducing the basic principles of digital communications performance analysis and its mathematical formalization, Fading and Interference Mitigation in Wireless Communications will help you stay up to date with recent developments in the performance analysis of space diversity reception over fading channels in the presence of cochannel interference. The book presents a unified method for computing the performance of digital communication systems characterized by a variety of modulation and detection types and channel models. Explaining the necessary concepts of digital communication system design, the book guides you step by step through the basics of performance analysis of digital communication receivers. Supplying you with the tools to perform an accurate performance evaluation of the proposed communication scenarios, the book includes coverage of multichannel reception in various fading environments, influence of cochannel interference, and macrodiversity reception when channels are simultaneously affected by various types of fading and shadowing. It also includes many numerical illustrations of applications that correspond to practical systems. The book presents a large collection of system performance curves to help researchers and system designers perform their own tradeoff studies. The presented collection of system performances will help you perform trade-off studies among the various communication type/drawback combinations in order to determine the optimal choice considering the available constraints. The concepts covered in this book can be useful across a range of applications, including wireless, satellite, terrestrial, and maritime communications.

Improved Mathematical Models for Fading and Shadowing in Wireless Channels

Improved Mathematical Models for Fading and Shadowing in Wireless Channels
Author: Seyed Ali Saberali
Publisher:
Total Pages: 75
Release: 2013
Genre: Mathematical models
ISBN:

Signal shadowing and multipath fading are two challenging phenomena in wireless communications. The goal of this thesis is to improve the statistical models and the mathematical tools required for description and analysis of some specific fading scenarios, namely lognormal shadowing, two-wave with diffuse power fading and diffuse Nakagami-m with line-of-sight fading. For lognormal shadowing, a novel method is proposed to derive approximations to the lognormal characteristic function. For two-wave with diffuse power fading, new expressions are derived for its probability density function, cumulative distribution function and moments. Finally, a novel fading model is introduced which combines a line-of-sight with a Nakagami-m diffuse scatter. The new fading model is justified and expressions are derived for its statistics. The new fading distribution is compared to the Rice, Nakagami-m and two-wave with diffuse power distributions. Application of the results in performance analysis of wireless systems operating in Nakagami-m with line-of-sight fading is investigated.

Fading and Interference Mitigation in Wireless Communications

Fading and Interference Mitigation in Wireless Communications
Author: Stefan Panic
Publisher: CRC Press
Total Pages: 263
Release: 2013-12-11
Genre: Computers
ISBN: 1466508426

Fading and Interference Mitigation in Wireless Communications will help readers stay up to date with recent developments in the performance analysis of space diversity reception over fading channels in the presence of cochannel interference. It presents a unified method for computing the performance of digital communication systems characterized by a variety of modulation and detection types and channel models. The book includes coverage of multichannel reception in various fading environments, influence of cochannel interference, and macrodiversity reception when channels are simultaneously affected by various types of fading and shadowing.

Fundamentals of Wireless Communication

Fundamentals of Wireless Communication
Author: David Tse
Publisher: Cambridge University Press
Total Pages: 598
Release: 2005-05-26
Genre: Computers
ISBN: 9780521845274

This textbook takes a unified view of the fundamentals of wireless communication and explains cutting-edge concepts in a simple and intuitive way. An abundant supply of exercises make it ideal for graduate courses in electrical and computer engineering and it will also be of great interest to practising engineers.

Wireless Communications Systems Design

Wireless Communications Systems Design
Author: Haesik Kim
Publisher: John Wiley & Sons
Total Pages: 434
Release: 2015-08-06
Genre: Technology & Engineering
ISBN: 1118759443

em style="mso-bidi-font-style: normal;"Wireless Communications Systems Design provides the basic knowledge and methodology for wireless communications design. The book mainly focuses on a broadband wireless communication system based on OFDM/OFDMA system because it is widely used in the modern wireless communication system. It is divided into three parts: wireless communication theory (part I), wireless communication block design (part II), and wireless communication block integration (part III). Written by an expert with various experience in system design (standards, research and development)

Digital Communication over Fading Channels

Digital Communication over Fading Channels
Author: Marvin K. Simon
Publisher: John Wiley & Sons
Total Pages: 936
Release: 2005-02-11
Genre: Science
ISBN: 0471715239

The four short years since Digital Communication over Fading Channels became an instant classic have seen a virtual explosion of significant new work on the subject, both by the authors and by numerous researchers around the world. Foremost among these is a great deal of progress in the area of transmit diversity and space-time coding and the associated multiple input-multiple output (MIMO) channel. This new edition gathers these and other results, previously scattered throughout numerous publications, into a single convenient and informative volume. Like its predecessor, this Second Edition discusses in detail coherent and noncoherent communication systems as well as a large variety of fading channel models typical of communication links found in the real world. Coverage includes single- and multichannel reception and, in the case of the latter, a large variety of diversity types. The moment generating function (MGF)-based approach for performance analysis, introduced by the authors in the first edition and referred to in literally hundreds of publications, still represents the backbone of the book's presentation. Important features of this new edition include: * An all-new, comprehensive chapter on transmit diversity, space-time coding, and the MIMO channel, focusing on performance evaluation * Coverage of new and improved diversity schemes * Performance analyses of previously known schemes in new and different fading scenarios * A new chapter on the outage probability of cellular mobile radio systems * A new chapter on the capacity of fading channels * And much more Digital Communication over Fading Channels, Second Edition is an indispensable resource for graduate students, researchers investigating these systems, and practicing engineers responsible for evaluating their performance.