Author: Brima Babatunde IbrahimPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Direct Sequence Spread Spectrum PN Code Synchronisation in Mobile Environments
Author: Brima Babatunde IbrahimSpread Spectrum Communications
Author: Marvin K. SimonPublisher:
ISBN: 9780881750157
Category : Spread spectrum communications
Languages : en
Pages : 456
Book Description
Introduction to CDMA Wireless Communications
Author: Mosa Ali Abu-RgheffPublisher: Academic Press
ISBN: 0080550401
Category : Technology & Engineering
Languages : en
Pages : 631
Book Description
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.
M-sequence Synchronization for Direct Sequence Spread Spectrum Systems
Author: Saikiran KrishnamurthyPublisher:
ISBN:
Category : Spread spectrum communications
Languages : en
Pages : 170
Book Description
On the Synchronization Aspects of Direct-sequence Spread Spectrum Systems
Author: Andreas PolydorosPublisher:
ISBN:
Category : Spread spectrum communications
Languages : en
Pages : 480
Book Description
Wireless Personal Communications
Author: Jeffrey H. ReedPublisher: Springer Science & Business Media
ISBN: 1461562376
Category : Technology & Engineering
Languages : en
Pages : 230
Book Description
The wireless industry is growing at a phenomenal rate. Cellular subscribers are increasing at a rate of 45% per year, the market for wireless local loop service is growing at a rate of 42%, and the wireless local area network market is growing at a rate of 61 %. This growth and potential for future growth has motivated companies to commit $20 billion in obtaining 90 MHz of PCS spectrum during the recent FCC auctions in the United States. Obviously spectrum is a costly, but critical, resource. Efficient utilization of this resource is essential for profitable wireless service. To meet this challenge, researchers in wireless communications are tenaciously developing more spectrally efficient modulation techniques, planning tools for efficient communication system layout, and digital signal processing techniques for more robust communications. The papers and lectures presented in this book were originally given at the Sixth Annual Virginia Tech Symposium on Wireless Personal Communications and cover a broad range of topics in wireless communications. The majority of the papers are relevant to creating higher capacity (spectrally efficient) systems with greater coverage. Topics include adaptive antenna array measurements and algorithm comparisons, Cellular Digital Packet Data deployment guidelines, speech coding techniques, wireless system design methodology, and propagation measurements in hostile or previously unexplored channels.
A Transform Domain Technique for Carrier Synchronization and PN Code Acquisition in a Direct Sequence Spread Spectrum Receiver
Author: Richard A. SternSelf Encoded Spread Spectrum Synchronization and Cooperative Diversity
Author: Kun HuaPublisher: LAP Lambert Academic Publishing
ISBN: 9783846536094
Category :
Languages : en
Pages : 132
Book Description
The main theme of this research is to improve data quality and security, optimize wireless networking system performance over wireless networks. concerned a novel self-encoded spread spectrum (SESS) network. It provides a feasible practical implementation for random spreading codes. The traditional transmit and receive PN code generators are not needed. Instead, the spreading codes are extracted from the user's information bits itself. Comparing to conventional CDMA, SESS completely abandons the use of pseudo-random spreading codes. The code variability doesn't depend on the spreading length like pseudo-random codes. SESS can achieve 3dB performance gain comparing to the conventional uncoded direct sequence spread spectrum system. The author considers initial acquisition as a global optimization problem and employ genetic search algorithm for converging to the global optimization efficiently. In the tracking phase, Markov chain analysis is used to examine the mean tracking time. SESS is incorporated with cooperative diversity (CD) technique (SESS-CD) to achieve spatial diversity gain with the number of relays.It's stability in highly correlated rayleigh channels has been observed.
Aspects of Synchronization in Direct Sequence Spread Spectrum Systems
Author: V. E. ComleyFundamentals of Wireless Communication
Author: David TsePublisher: Cambridge University Press
ISBN: 9780521845274
Category : Computers
Languages : en
Pages : 598
Book Description
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.