Download or read book Performance Analysis of Pilot Aided Forward CDMA Cellular Channel written by Nikolaos Panagopoulos and published by . This book was released on 2001-09-01 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we analyze the performance of the forward channel of a DS-CDMA cellular system operating in a Rayleigh-fading, Lognormal-shadowing environment. We develop an upper bound on the probability of bit error, including all the participating interference. In addition, various techniques such as sectoring and forward error correction in the terms of convolutional encoding are applied to optimize the performance. We further improve the performance by applying a narrow bandpass filter in the pilot tone branch of the demodulator. We then adjust the bandwidth of the filter in the means of the interference power passing through and observe the effects on the probability of bit error of the system. Moreover, pilot tone power control is added to enhance the demodulation. Finally, in this thesis a simple single cell system functioning as a port-to-port network communication between very small numbers of users is analyzed.
Download or read book Modeling and Performance Analysis of Cellular CDMA Channel with Rake Receiver written by Suleyman Sadi Ugural and published by . This book was released on 2001 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we established a cellular CDMA reverse channel model, which incorporates a time-invariant discrete multipath Nakagami-fading channel in a multiple-cell system. The effects of intra and inter-cell interference, perfect power control, lognormal shadowing and RAKE receiver with varying number of taps are investigated. For performance improvement forward error correction and smart antenna techniques are incorporated into the model. Expressions for probability of bit error are developed under a range of operating conditions and the model is tested using Monte Carlo Simulation.
Download or read book The Performance Analysis of Space Time Spreading CDMA on Transmit and Receive Antenna Diversity Systems with Imperfect Channel Estimation written by Norihito Aoki and published by . This book was released on 2002 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance Analysis of Wireless Communication FH CDMA System Under a Fading Channel written by and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Trends in Electronics Conference written by and published by . This book was released on 2000 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Digital Signal Processing Applications written by and published by . This book was released on 1999 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1999 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book W CDMA written by Keiji Tachikawa and published by John Wiley & Sons. This book was released on 2003-03-14 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of cellular based mobile communication systems, from the first generation (analogue) to the second generation (digital), has been made possible by solving many technical issues along the way. Efforts to develop a global standard for providing high-speed, high quality multimedia services have crystallised in the form of the third generation (3G) systems under the IMT 200 standard. The world's first 3G system has been implemented by Japan based on the latest research results and other countries are expected to follow from 2002 onwards. 3G systems are expected to bring about radical socio-economic and cultural changes that would affect people around the world. This volume reviews in detail the basic technologies applied to W-CDMA, a standard 3G mobile communications technology. The focus is to explain in layman's language the technologies that will play an important part in future developments, with reference to the latest research results.
Download or read book Signal Processing for Mobile Communications Handbook written by Mohamed Ibnkahla and published by CRC Press. This book was released on 2004-08-16 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, a wealth of research has emerged addressing various aspects of mobile communications signal processing. New applications and services are continually arising, and future mobile communications offer new opportunities and exciting challenges for signal processing. The Signal Processing for Mobile Communications Handbook provi
Download or read book 3G HSPA and FDD versus TDD Networking written by Lajos Hanzo and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3G, HSPA and FDD versus TDD Networking, Second Edition is the only book that contrasts the network capacity gains that may be achieved with the advent of adaptive antenna arrays and HSDPA-style adaptive modulation techniques in the context of FDD and TDD CDMA cellular networks. In the five years since the first edition of this book was published the wireless landscape has evolved further. The new book addresses the recent developments in the field of HSDPA-style wireless networking, focusing particularly on the issues and challenges of FDD versus TDD networking. These solutions are particularly powerful in shadow-faded scenarios, when the antenna array elements experience correlated, rather than independent fading. Furthermore, the flexible up-link/down-link time-slot allocation of TDD is beneficial for supporting the Wireless Internet, but results in erratic interference fluctuations, which is efficiently combated by the antenna arrays and adaptive modulation. Additionally, whilst the adaptive modulation aided system simply drops the instantaneous transmission rate during instances of high interference, conventional networks would drop the call. Builds on successful previous edition to include recent developments in the field of HSDPA-style wireless networking Provides an all-encompassing self-contained overview of the subject for a wide range of readers of all levels. Treats the topics of both physical-layer and network-layer aspects of wireless systems using a cross-layer optimization approach. One of the first books to contrast in detail both FDD and TDD networking. The material is presented clearly and logically allowing the uninitiated reader to commence reading it at fundamental non-mathematical conceptual level at the beginning of the book, while advanced readers can turn directly to the required chapter describing solutions to a number of wireless FDD or TDD networking problems. This book will inspire researchers, practicing engineers, operators, marketing engineers and advanced postgraduates.
Download or read book Wireless Personal Communications written by Theodore S. Rappaport and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless personal communications, or wireless as it is now being called, has arrived. The hype is starting to fade, and the hard work of deploying new systems and services for personal communications is underway. In the United States, the FCC propelled the wireless era from infancy to mainstream with a $7.7 billion auction of 60 MHz of radio spectrum in the 180011900 MHz band. With the largest single sale of public property in the history of mankind mostly complete, the resources of the entire world are being called upon to develop inexpensive, rapidly deployable wireless systems and sub scriber units for an industry that is adding s\lbscribers at greater than 50% annual rate. This growth is commonplace for wireless service companies throughout the world, and in the U.S., where as many as 7 licensed wireless service providers may be competing for cellularlPCS customers within the next couple of years, differentiators in cost, qual ity, service, and coverage will become critical to customer acceptance and use. Many of these issues are discussed in the papers included in this book.
Download or read book IEE Proceedings written by Institution of Electrical Engineers and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes IEE proceedings parts A through I
Download or read book Wireless Data Technologies written by Vern A. Dubendorf and published by John Wiley & Sons. This book was released on 2003-07-07 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The expansion and popularity of the Internet, along with the addition of wireless data functionality to wireless networks, has also contributed greatly to the growth of the wireless industry. In fact, the anticipated consumer demand for high bandwidth wireless data is commonly seen as the driving force behind current network upgrades and expansions. The number and types of companies aggressively investing in wireless technologies illustrate the importance of wireless data. Non-traditional telecommunications companies such as Cisco Systems, Intel, Microsoft, 3Com, and other professional services companies, are investing heavily in wireless product development and many have formed partnerships with wireless infrastructure manufacturers to help deliver wireless data services seamlessly to consumers. Written by a respected author this self-contained overview of wireless date technologies will provide a highly sought after technical reference to all those working within the main areas of Wireless Data Services. Provides a self-contained reference which discusses the key wireless technologies including security Presents an overview of the wireless industry and its key components such as GSM, GPRS, CDMA, TDMA, UMTS, cdma2000, and Spread Spectrum, 802.11, 15 and 16 standards Discusses the currently hot topic of Wireless Security Includes a Foreword by Dr Bill Hancock, Chief Security Officer, Exodus Communications/Cable & Wireless Provides a ready reference as well as a reference to additional materials on each topic Essential reading for all staff working for Telecom companies: engineers, researchers, managers etc.
Download or read book Performance Analysis of Adaptive Rate CDMA Cellular Networks written by Syed-Alireza Seyedi-Esfahani and published by . This book was released on 1999 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance Analysis of Adaptive Transmission Aided by Long Range Channel Prediction for Realistic Single and Multi carrier Mobile Radio Channels written by Tung-Sheng Yang and published by . This book was released on 2004 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: wireless communications, physical channel modeling, adaptive modulation, channel prediction, OFDM.
Download or read book On Performance Evaluation of Wideband Communication Systems with Pilot Aided Channel Estimation written by Sahar Javaher Haghighi and published by . This book was released on 2010 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Record written by and published by . This book was released on 2001 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
