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Basics of Code Division Multiple Access (CDMA)

2005 Technology & Engineering
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Release : 2005
Genre : Technology & Engineering
Kind : eBook
Book Rating : 698/5 ( reviews)

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Book Synopsis Basics of Code Division Multiple Access (CDMA) by : Raghuveer M. Rao

Download or read book Basics of Code Division Multiple Access (CDMA) written by Raghuveer M. Rao. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: Code division multiple access (CDMA) has proven to be a viable enabling technique for the simultaneous transmission and reception of data over a shared channel. Although associated mostly with wireless cellular communication, CDMA is also being considered for optical channels. This text, aimed at the reader with a basic background in electrical or optical engineering, covers CDMA fundamentals: from the basics of the communication process and digital data transmission, to the concepts of code division multiplexing, direct sequence spreading, diversity techniques, the near-far effect, and the IS-95 CDMA standard form.

Code Division Multiple Access (CDMA)

2006 Code division multiple access
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Release : 2006
Genre : Code division multiple access
Kind : eBook
Book Rating : 401/5 ( reviews)

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Book Synopsis Code Division Multiple Access (CDMA) by : R. Michael Buehrer

Download or read book Code Division Multiple Access (CDMA) written by R. Michael Buehrer. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the basic aspects of Code Division Multiple Access or CDMA. It begins with an introduction to the basic ideas behind fixed and random access systems in order to demonstrate the difference between CDMA and the more widely understood TDMA, FDMA or CSMA. Secondly, a review of basic spread spectrum techniques are presented which are used in CDMA systems including direct sequence, frequency-hopping and time-hopping approaches. The basic concept of CDMA is presented, followed by the four basic principles of CDMA systems that impact their performance: interference averaging, universal frequency reuse, soft handoff, and statistical multiplexing. The focus of the discussion will then shift to applications. The most common application of CDMA currently is cellular systems. A detailed discussion on cellular voice systems based on CDMA, specifically IS-95, is presented. The capacity of such systems will be examined as well as performance enhancement techniques such as coding and spatial filtering. Also discussed are Third Generation CDMA cellular systems and how they differ from Second Generation systems. A second application of CDMA that is covered is spread spectrum packet radio networks. Finally, there is an examination of multi-user detection and interference cancellation and how such techniques impact CDMA networks. This book should be of interest and value to engineers, advanced students, and researchers in communications.

CDMA

1995 Technology & Engineering
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Release : 1995
Genre : Technology & Engineering
Kind : eBook
Book Rating : 740/5 ( reviews)

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Book Synopsis CDMA by : Andrew J. Viterbi

Download or read book CDMA written by Andrew J. Viterbi. This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt: Spread spectrum multiple access communication, known commercially as CDMA (Code Division Multiple Access), is a driving technology behind the rapidly advancing personal communications industry. Its greater bandwidth efficiency and multiple access capabilities make it the leading technology for relieving spectrum congestion caused by the explosion in popularity of cellular mobile and fixed wireless telephones and wireless data terminals. Written by a leader in the creation of CDMA and an internationally recognized authority on wireless digital communication, this book gives you the technical information you need. It presents the fundamentals of digital communications and covers all aspects of commercial direct-sequence spread spectrum technology, incorporating both physical-level principles and network concepts. You will find detailed information on signal generation, synchronization, modulation, and coding of direct-sequence spread spectrum signals. In addition, the book shows how these physical layer functions relate to link and network properties involving cellular coverage, Erlang capacity, and network control. With this book, you will attain a deeper understanding of personal communications system concepts and will be better equipped to develop systems and products at the forefront of the personal wireless communications market.

The Next Generation CDMA Technologies

2007-08-20 Technology & Engineering
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Release : 2007-08-20
Genre : Technology & Engineering
Kind : eBook
Book Rating : 955/5 ( reviews)

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Book Synopsis The Next Generation CDMA Technologies by : Hsiao-Hwa Chen

Download or read book The Next Generation CDMA Technologies written by Hsiao-Hwa Chen. This book was released on 2007-08-20. Available in PDF, EPUB and Kindle. Book excerpt: Future wireless communication systems should be operating mainly, if not completely, on burst data services carrying multimedia traffic.The need to support high-speed burst traffic has already posed a great challenge to all currently available air-link technologies based either on TDMA or CDMA.The first generation CDMA technology has been used in both 2G and 3G mobile cellular standards and it has been suggested that it is not suitable for high-speed burst-type traffic. There are many problems with the first generation CDMA technology, such as its low spreading efficiency, interference-limited capacity and the need for precision power control, etc... 'The Next Generation Technologies' will offer first-hand information on how to make use of various innovative technologies to implement the next generation CDMA technology. As an all-in-one reference for telecommunications engineers, advanced R & D personnels, undergraduate and postgraduate students, this book is must-read material. Addresses various important issues about the next generation CDMA technologies as the major air-link technology for beyond 3G wireless applications. Covers topics from next generation CDMA system modelling to analytical methodology, starting with the basics and progressing to advanced research topics. Contains many new and previously unpublished research results. Introduces many innovative CDMA technologies such as DS/CC-CDMA, OS/CC-CDMA, space-time complementary coding CDMA, M-ary CDMA, optical complementary coded CDMA, etc.

CDMA Radio with Repeaters

2007-12-14 Technology & Engineering
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Release : 2007-12-14
Genre : Technology & Engineering
Kind : eBook
Book Rating : 647/5 ( reviews)

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Book Synopsis CDMA Radio with Repeaters by : Joseph Shapira

Download or read book CDMA Radio with Repeaters written by Joseph Shapira. This book was released on 2007-12-14. Available in PDF, EPUB and Kindle. Book excerpt: The book addresses the role of repeaters in the CDMA network, their interaction with the network and the needed integrative design and optimization of the repeater-embedded network. The approach of the book is to develop functional comprehension of the complex radio network, and affinity to the factors dominating the Radio Resource Utilization. Simple models are developed, and field-measured case studies complement the analysis.

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