Cdma Techniques for Third Generation Mobile Systems

Cdma Techniques for Third Generation Mobile Systems PDF Author: Francis Swarts
Publisher:
ISBN: 9781461551041
Category :
Languages : en
Pages : 338

Get Book

Book Description

Cdma Techniques for Third Generation Mobile Systems

Cdma Techniques for Third Generation Mobile Systems PDF Author: Francis Swarts
Publisher:
ISBN: 9781461551041
Category :
Languages : en
Pages : 338

Get Book

Book Description


CDMA Techniques for Third Generation Mobile Systems

CDMA Techniques for Third Generation Mobile Systems PDF Author: Francis Swarts
Publisher: Springer Science & Business Media
ISBN: 146155103X
Category : Technology & Engineering
Languages : en
Pages : 324

Get Book

Book Description
CDMA Techniques for Third Generation Mobile Systems presents advanced techniques for analyzing and developing third generation mobile telecommunication systems. Coverage includes analysis of CDMA-based systems, multi-user receivers, Turbo coding for mobile radio applications, spatial and temporal processing techniques as well as software radio techniques. Special emphasis has been given to recent advances in coding techniques, smart antenna systems, spatial filtering, and software implementation issues. Internationally recognized specialists contributed to this volume, and each chapter has been reviewed and edited for uniformity. CDMA Techniques for Third Generation Mobile Systems is an invaluable reference work for engineers and researchers involved in the development of specific CDMA systems.

Wideband CDMA for Third Generation Mobile Communications

Wideband CDMA for Third Generation Mobile Communications PDF Author: Tero Ojanperä
Publisher: Artech House Universal Persona
ISBN: 9780890067352
Category : Technology & Engineering
Languages : en
Pages : 0

Get Book

Book Description
A comprehensive study of the developmental trends and practical design, planning, and deployment issues associated with wideband CDMA technology, this book evaluates W-CDMA as an effective third generation technology option, and gives a clear picture of the various W-CDMA standardization activities currently underway worldwide.

Code Division Multiple Access (CDMA)

Code Division Multiple Access (CDMA) PDF Author: R. Michael Buehrer
Publisher: Morgan & Claypool Publishers
ISBN: 1598290401
Category : Code division multiple access
Languages : en
Pages : 192

Get Book

Book Description
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.

Third Generation CDMA Systems for Enhanced Data Services

Third Generation CDMA Systems for Enhanced Data Services PDF Author: Giridhar D. Mandyam
Publisher: Elsevier
ISBN: 0080519237
Category : Technology & Engineering
Languages : en
Pages : 286

Get Book

Book Description
The use of mobile communication devices has grown phenomenally throughout the world during the last few years. With strong consumer demand to increase data delivery (large emails, browsing the Internet on wireless devices, transferring video images, etc.), engineers are faced with the challenge of enhancing CDMA to provide larger data capabilities while improving voice signals for clearer reception. In November 2001 the U.S. Federal Communications Commission released a much broader band of frequencies to wireless service providers, which will speed up the development of these systems. Simulation results demonstrate the performance benefits of the proposed systems versus their third-generation predecessors Up-to-date overview of the standardised air interface

Code Division Multiple Access (CDMA)

Code Division Multiple Access (CDMA) PDF Author: R. Michael
Publisher: Springer Nature
ISBN: 3031016734
Category : Technology & Engineering
Languages : en
Pages : 182

Get Book

Book Description
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.

GSM

GSM PDF Author: Z. Zvonar
Publisher: Springer Science & Business Media
ISBN: 0306470454
Category : Technology & Engineering
Languages : en
Pages : 361

Get Book

Book Description
The Global System for Mobile Communication (GSM) is undoubtedly the most successful second generation digital mobile radio system. One of the key factors for this exceptional performance is the constant evolution of the GSM systems and its derivatives DCS-1800 and PCS-1900. The objective of the book is to address new concepts in the GSM system, dealing with both standardised features as well as theoretically and technologically feasible improvements, which contribute to evolutionary changes in general. Dynamic evolution of GSM presents a platform for the Universal Mobile Telecommunication System (UMTS) introduction and major trends in UMTS development will be addressed in this book, in particular progress towards new radio interface. The book is the collection of individual contributions from a number of authors. The intention of the editors was to gather the most prominent specialist in the GSM area. Ongoing efforts in GSM standardisation are focused on Phase 2+ with items planned to be added gradually on demand. Being mostly independent of each other, each of them could be introduced with little impact on the rest of the system. Speech remains the prime service of cellular systems with ongoing work on spectral efficiency taking into account the trade-off between cost of the system and transmission quality. Most notable result from novel speech service implementations is the introduction of new Enhanced Full Rate (EFR) speech coder. International railway organisation (Union Internationale des Chemins de Fer - UIC) has influenced the development of Advanced Speech Call Items (ASCI).

WCDMA

WCDMA PDF Author: Tero Ojanperä
Publisher: Artech House
ISBN: 1580531806
Category : Computers
Languages : en
Pages : 477

Get Book

Book Description
While covering the basics of wideband CDMA, this major revision of the bestseller brings design engineers and technical managers up to date with all the latest developments and technologies in third generation mobile communications. This cutting-edge book gives professionals a complete understanding of the complex standardization environment of 3G networks and the design and development of 3G systems.

Wireless Communications

Wireless Communications PDF Author: Savo G. Glisic
Publisher: Springer Science & Business Media
ISBN: 147572604X
Category : Technology & Engineering
Languages : en
Pages : 535

Get Book

Book Description
In Time Division Multiple Access (TDMA), within a given time frame a particular user is allowed to transmit within a given time slot. This technique is used in most of the second-generation digital mobile communication systems. In Europe the system is known as GSM, in USA as DAMPS and in Japan as MPT. In Code Division Multiple Access (CDMA) every user is using a distinct code so that it can occupy the same frequency bandwidth at the same time with other users and still can be separated on the basis of low correlation between the codes. These systems like IS-95 in the USA are also developed and standardized within the second generation of the mobile communication systems. CDMA systems within a cellular network can provide higher capacity and for this reason they become more and more attractive. At this moment it seems that both TDMA and CDMA remain viable candidates for application in future systems. Wireless Communications: TDMA versus CDMA provides enough information for correct understanding of the arguments in favour of one or other multiple access technique. The final decision about which of the two techniques should be employed will depend not only on technical arguments but also on the amount of new investments needed and compatibility with previous systems and their infrastructures. Wireless Communications: TDMA versus CDMA comprises a collection of specially written contributions from the most prominent specialists in wireless communications in the world today and presents the major, up to date, issues in this field. The material is grouped into four chapters: Communication theory, covering coding and modulation, Wireless communications, Antenna & Propagation and Advanced Systems & Technology. The book describes clearly the issues and presents the information in such a way that informed decisions about third generation wireless systems can be taken. It is essential reading for all researchers, engineers and managers working in the field of Wireless Communications.

Space-Time Processing for CDMA Mobile Communications

Space-Time Processing for CDMA Mobile Communications PDF Author: Pieter van Rooyen
Publisher: Springer Science & Business Media
ISBN: 0306473259
Category : Technology & Engineering
Languages : en
Pages : 310

Get Book

Book Description
Space-Time Processing for CDMA Mobile Communications is one of the first books to: bring together spatial/temporal channel models and analytic performance evaluation techniques; establish a link between smart antenna systems and advanced receiver design techniques; treat smart antennas specifically for UMTS-like communication systems, with applicable simulations and calculations; supply code with Matlab® GUI so readers can run or modify existing simulations or create new ones. The field of smart antenna technology or, more generally, space-time processing is rapidly becoming one of the most promising areas of mobile communications, especially regarding the development of the first practical third-generation mobile communication systems. The authors have addressed many of the most basic questions relating to the use of space-time processing in CDMA-based third-generation systems and have presented models for the integration of space-time processing, error correction coding, and multi-user detection techniques. Included is extensive background information on cellular systems, antenna array theory, smart antenna techniques, performance of basic space-time processors and advanced space-time processors. The book also includes an extensive simulation program written in Matlab®. The simulation code implements both the uplink and the downlink of a UMTS-like communication system. This provides multiple options for simulating system performance using a variety of channel models as well as receiver structures. Space-Time Processing for CDMA Mobile Communications will be an invaluable reference work for engineers and researchers, and a useful source for design engineers enabling them to understand the implications of adding space-time processing systems to CDMA-based communication systems.