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Author : Brad J Rainbolt
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (41 download)
Download or read book Direct-sequence Code-division Multiple-access Overlay Systems written by Brad J Rainbolt and published by . This book was released on 1998 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Savo G. Glisic
Publisher : Springer Science & Business Media
ISBN 13 : 146152251X
Total Pages : 366 pages
Book Rating : 4.4/5 (615 download)
Download or read book Code Division Multiple Access Communications written by Savo G. Glisic and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Code Division Multiple Access (CDMA) has become one of the main candidates for the next generation of mobile land and satellite communication systems. CDMA is based on spread spectrum techniques, which have been used in military applications for over half a century. Only recently, however, has it been recognised that spread spectrum techniques, combined with some additional steps, can provide higher capacity and better flexibility for the mobile cellular radio communications. Code Division Multiple Access Communications comprises a set of contributions from the most distinguished world scientists in the field. These papers review the basic theory and some of the most important problems related to spread spectrum and CDMA. The topics covered centre on the information theory aspects of CDMA; interference suppression and performance analysis. The material presented in this book summarises the main problems in modern CDMA theory and practice and gives a solid starting point for studying this complex and still challenging field. As such Code Division Multiple Access Communications is essential reading for all researchers and designers working in mobile communication systems and provides an excellent text for a course on the subject.
Author : Li Gao
Publisher :
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.:/5 (55 download)
Download or read book Adaptive Direct Sequence Code Division Multiple Access (DS-CDMA) Systems Based on Sequence Optimization written by Li Gao and published by . This book was released on 2002 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mosa Ali Abu-Rgheff
Publisher : Academic Press
ISBN 13 : 0080550401
Total Pages : 631 pages
Book Rating : 4.0/5 (85 download)
Download or read book Introduction to CDMA Wireless Communications written by Mosa Ali Abu-Rgheff and published by Academic Press. This book was released on 2007-09-10 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives an in-depth study of the principles of the spread spectrum techniques and their applications in mobile communications. It starts with solid foundations in the digital communications that are essential to unequivocal understanding of the CDMA technology, and guides the reader through the fundamentals and characteristics of cellular CDMA communications. Features include:* A very clear and thorough description of the principles and applications of spread spectrum techniques in multi-user mobile communications.* Matlab-based worked examples, exercises and practical sessions to clearly explain the theoretical concepts.* An easy-to-read explanation of the air interface standards used in IS-95 A/B, cdma2000, and 3G WCDMA.* Clear presentations of the high speed downlink and uplink packet access (HSDPA/HSUPA) techniques used in 3G WCDMA.The book is a very suitable introduction to the principles of CDMA communications for senior undergraduate and graduate students, as well researchers and engineers in industry who are looking to develop their expertise. - A very clear and thorough description of the principles and applications of spread spectrum techniques in multi-user mobile communications. - Matlab-based worked examples, exercises and practical sessions to clearly explain the theoretical concepts. - An easy-to-read explanation of the air interface standards used in IS-95 A/B, cdma2000, and 3G WCDMA. - Clear presentations of the high speed downlink and uplink packet access (HSDPA/HSUPA) techniques used in 3G WCDMA.
Author : Tein-Hsiang Lin
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (113 download)
Download or read book A Synchronous Direct Sequence Spread Spectrum Code Division Multiple Access System in a Dual Trunk Cable Network written by Tein-Hsiang Lin and published by . This book was released on 1984 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Reza Zekavat
Publisher : John Wiley & Sons
ISBN 13 : 1118104765
Total Pages : 1138 pages
Book Rating : 4.1/5 (181 download)
Download or read book Handbook of Position Location written by Reza Zekavat and published by John Wiley & Sons. This book was released on 2011-09-09 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio systems capable of localization have emerging applications in homeland security, law enforcement, emergency response, defense command and control, multi-robot coordination and vehicle-to-vehicle and vehicle-to-pedestrian collision avoidance. In fact, high resolution localization is vital for many applications, including: traffic alert, emergency services, e.g., indoor localization for firefighters, and battlefield command and control. These systems promise to dramatically reduce society's vulnerabilities to catastrophic events and improve its quality of of life. While work this important area is progressing, limited resources are available to support graduate students and researchers in this important area. Specifically, a limited number of books has been published in this area covering selected subjects. This comprehensive handbook offers gaps of available localization books presenting in-depth coverage from fundamentals of coordinates to advanced application examples.
Author : Jiangzhou Wang
Publisher : Springer Science & Business Media
ISBN 13 : 0306469995
Total Pages : 350 pages
Book Rating : 4.3/5 (64 download)
Download or read book Broadband Wireless Communications written by Jiangzhou Wang and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: The broadband wireless communications field is growing at an explosive rate, stimulated by a host of important emerging applications ranging from 3G, 4G and wireless LAN. Wideband CDMA and CDMA2000 will be used for 3G. OFDM+CDMA might be a good choice for 4G, CDMA overlay will possibly be used for new-generation broadband wireless LAN. For system planners and designers, the projections of rapidly escalating demand for such wireless services present major challenges and meeting these challenges will require sustained technical innovation on many fronts. The text of this book has been developed through years of research by the author and his graduate students at the University of Hong Kong. The aim of this book is to provide a R&D perspective on the field of broadband wireless communications by describing the recent research developments in this area and also by identifying key directions in which further research is needed. As a background, I presume that the reader has a thorough understanding of digital communications and spread spectrum/CDMA. The book is arranged into 13 chapters. In chapter 1, some key specifications of 3G WCDMA are described and discussed. These techniques include channel coding, rate matching, modulation and spreading, power control, cell search, transmit diversity, soft-handoff, and so son. In Chapter 2, the coherent RAKE reception of Wideband CDMA signals with complex spreading is considered. A dedicated pilot channel, which is separate from data channels, is used for the purpose of channel estimation.
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781723747366
Total Pages : 40 pages
Book Rating : 4.7/5 (473 download)
Download or read book Performance Analysis of Direct-Sequence Code-Division Multiple-Access Communications with Asymmetric Quadrature Phase-Shift-Keying Modulation written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-16 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This article considers a quaternary direct-sequence code-division multiple-access (DS-CDMA) communication system with asymmetric quadrature phase-shift-keying (AQPSK) modulation for unequal error protection (UEP) capability. Both time synchronous and asynchronous cases are investigated. An expression for the probability distribution of the multiple-access interference is derived. The exact bit-error performance and the approximate performance using a Gaussian approximation and random signature sequences are evaluated by extending the techniques used for uniform quadrature phase-shift-keying (QPSK) and binary phase-shift-keying (BPSK) DS-CDMA systems. Finally, a general system model with unequal user power and the near-far problem is considered and analyzed. The results show that, for a system with UEP capability, the less protected data bits are more sensitive to the near-far effect that occurs in a multiple-access environment than are the more protected bits.Wang, C.-W. and Stark, W.Jet Propulsion LaboratoryQUADRATURE PHASE SHIFT KEYING; BINARY PHASE SHIFT KEYING; ASYMMETRY; CODE DIVISION MULTIPLE ACCESS; PHASE SHIFT KEYING; MULTIPLE ACCESS; PROTECTION; RELIABILITY ANALYSIS
Author :
Publisher :
ISBN 13 :
Total Pages : 1134 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tat-Tung Wong
Publisher : Open Dissertation Press
ISBN 13 : 9781374712096
Total Pages : 70 pages
Book Rating : 4.7/5 (12 download)
Download or read book MULTICARRIER CDMA OVERLAY FOR written by Tat-Tung Wong and published by Open Dissertation Press. This book was released on 2017-01-27 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Multicarrier CDMA Overlay for Ultra-wideband Wireless Communications" by Tat-tung, Wong, 黃達東, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled Multicarrier CDMA Overlay for Ultra-wideband Wireless Communications Submitted by Wong Tat Tung for the degree of Master of Philosophy at The University of Hong Kong in August 2003 Ultra-wideband (UWB) technology is widely considered to offer an innovative solution for future short-range high-speed wireless communications. In this study, the use of multi-carrier direct sequence code division multiple access (MC-DS-CDMA) overlay with both transmitter and receiver filtering is suggested for UWB applications, as an alternative to the conventional carrier-less approach. The main contribution of the study is to provide an analytical framework to illustrate the feasibility of the use of MC-DS- CDMA in UWB wireless communications. A literature review in Chapter 1 provides an overview of UWB technology and explains why MC-DS-CDMA is considered to be a feasible candidate for UWB communications. In Chapter 2, the factors of characterized large number multiple propagation paths and the existence of strong narrowband systems are taken into account for the construction of system model. Numerical expressions for performance evaluation are formulated and the system analysis is conducted with the assumption of random spreading code and Gaussian approximation. The performances of various receiving strategies are compared extensively. Results in Chapter 3 show that the proposed MC- DS-CDMA UWB system is capable of using spectrum already allocated to established services without causing noticeable interference to the existing users, and that pre- combining a minimum mean square error receiver with selective-maximal combining provides much better performance than a receiver made up of notch filter in cascade with code matched correlator or a code matched correlator receiver. A discussion of the significance of these results and conclusions are provided in Chapter 4 and Chapter 5 respectively. (247 Words) DOI: 10.5353/th_b2949119 Subjects: Code division multiple access Ultra-wideband devices Wireless communication systems
Download or read book Performance Analysis of Direct Sequence Code Division Multiple Access Systems written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jiangzhou Wang
Publisher : Cambridge University Press
ISBN 13 : 1139474529
Total Pages : 316 pages
Book Rating : 4.1/5 (394 download)
Download or read book High-Speed Wireless Communications written by Jiangzhou Wang and published by Cambridge University Press. This book was released on 2008-10-02 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysing and designing reliable and fast wireless networks requires an understanding of the theory underpinning these systems and the engineering complexities of their implementation. This text describes the underlying principles and major applications of high-speed wireless technologies, with emphasis on ultra-wideband (UWB) wireless systems, 3G long term evolution, and 4G mobile networks. Key topics such as cross-layer optimization are discussed in detail and various forms of UWB, including multi-band OFDM UWB, are covered. Recent research developments are described before identifying the scope and direction for future research. The overlay problem (interference problem) in UWB is discussed, and the author aims to illustrate that OFDM is not the best wireless access technique for high speed transmission. Covering the latest technologies in the area, this book will be a valuable resource for graduate students of electrical and computer engineering as well as practitioners in the wireless communications industry.
Author : Davide Dardari
Publisher : Academic Press
ISBN 13 : 0123820847
Total Pages : 465 pages
Book Rating : 4.1/5 (238 download)
Download or read book Satellite and Terrestrial Radio Positioning Techniques written by Davide Dardari and published by Academic Press. This book was released on 2011-11-09 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develop a whole range of location-aware personal devices and services using this all-encompassing reference of classical and state-of-the-art methods, techniques and applications for location and satellite positioning. Publisher's note.
Author :
Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (924 download)
Download or read book Asynchronous Direct-sequence Code-division Multiple Access Systems written by and published by . This book was released on 1997 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Erik G. Ström
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.:/5 (333 download)
Download or read book Direct-sequence Code-division Multiple Access Systems written by Erik G. Ström and published by . This book was released on 1994 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ertan Ozturk
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (496 download)
Download or read book Single and Multi Scale Direct Sequence-code Division Multiple Access for Wireless Communication Networks written by Ertan Ozturk and published by . This book was released on 2001 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vijay Garg
Publisher : Elsevier
ISBN 13 : 0080549071
Total Pages : 931 pages
Book Rating : 4.0/5 (85 download)
Download or read book Wireless Communications & Networking written by Vijay Garg and published by Elsevier. This book was released on 2010-07-28 with total page 931 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of mobile data networking and mobile communications under a single cover for diverse audiences including managers, practicing engineers, and students who need to understand this industry. In the last two decades, many books have been written on the subject of wireless communications and networking. However, mobile data networking and mobile communications were not fully addressed in a unified fashion. This book fills that gap in the literature and is written to provide essentials of wireless communications and wireless networking, including Wireless Personal Area Networks (WPAN), Wireless Local Area Networks (WLAN), and Wireless Wide Area Networks (WWAN). The first ten chapters of the book focus on the fundamentals that are required to study mobile data networking and mobile communications. Numerous solved examples have been included to show applications of theoretical concepts. In addition, unsolved problems are given at the end of each chapter for practice. (A solutions manual will be available.)After introducing fundamental concepts, the book focuses on mobile networking aspects. Four chapters are devoted on the discussion of WPAN, WLAN, WWAN, and internetworking between WLAN and WWAN. Remaining seven chapters deal with other aspects of mobile communications such as mobility management, security, cellular network planning, and 4G systems.A unique feature of this book that is missing in most of the available books on wireless communications and networking is a balance between the theoretical and practical concepts. Moreover, this book can be used to teach a one/two semester course in mobile data networking and mobile communications to ECE and CS students.*Details the essentials of Wireless Personal Area Networks(WPAN), Wireless Local Are Networks (WLAN), and Wireless Wide Area Networks (WWAN)*Comprehensive and up-to-date coverage including the latest in standards and 4G technology*Suitable for classroom use in senior/first year grad level courses. Solutions manual and other instructor support available
