Co-channel Interference Analysis and a Beamformer for TDMA Cellular System
Author : Yousef M. Hawwar
Publisher :
Page : 100 pages
File Size : 48,76 MB
Release : 1997
Category : Cell phone services industry
ISBN :
Interference Suppression Algorithms for TDMA Cellular Systems
Author : Myung-Hoon Yeon
Publisher : ProQuest
Page : 306 pages
File Size : 10,70 MB
Release : 2008
Category :
ISBN : 9780549478300
Book Description
Cochannel interference (CCI) and intersymbol interference (ISI) degrade the performance of cellular communication systems. In this dissertation, we investigate adaptive beamforming algorithms to suppress CCI in time-division multiple-access (TDMA) systems. In one approach, we are interested in iterative weight refinement techniques where the beamformer weights are computed successively using re-encoded data. We also suggest a semi-blind algorithm using a modified least-squares (LS) cost function. In addition, adaptive filtered training sequences compensate for the sampling phase offset of cochannel signals. At low signal-to-interference ratios (SIRs), the performance of the semi-blind beamformer exceeds that of the beamformer using filtered training sequences; however, for high SIRs, the reverse occurs. In order to improve the beamformer performance without regard to SIRs, we propose a hybrid beamformer using re-encoded data, filtered training sequences, and the semi-blind algorithm. Furthermore, we extend these beamforming algorithms to channel equalizers to mitigate ISI. We also analyze their performance using a stochastic model based on Wiener filter theory. Finally, we evaluate various receivers incorporating the proposed beamformers and equalizers. In these receivers, the TDMA data are processed in several stages that include the following series of steps: frame synchronization, adaptive beamforming, signal demodulation, adaptive equalization, and decoding. The performance of the multistage receivers is evaluated using simulated and real TDMA data.
Wiley Encyclopedia of Telecommunications, 5 Volume Set
Author : John G. Proakis
Publisher : Wiley-Interscience
Page : 656 pages
File Size : 50,99 MB
Release : 2003-01-06
Category : Reference
ISBN :
Book Description
Engineers have long required a comprehensive yet concise resource to turn to for reliable, up-to-date information on the continually evolving field of telecommunications. In five easily searched volumes, the Wiley Encyclopedia of Telecommunications provides a broad, clear overview of both the fundamentals of and recent advances in telecommunications. This essential reference-the only one dedicated to telecommunications for electrical engineers-is available in print and online formats. Topics Include: Optical communications Modulation and demodulation Coding and decoding Communication networks Antennas John G. Proakis is the Series Editor for the Wiley Series in Telecommunications and Signal Processing. In preparing this Encyclopedia, Dr. Proakis been assisted by an editorial board of five leading telecommunications engineers from academia and industry to bring you: Approximately 300 articles on various topics in telecommunications Articles are written by experts in their fields A broad, clear overview of both the fundamentals and recent advances in telecommunications Cutting edge topics covering the entire field of telecommunications and signal processing For more information regarding the online edition of this major reference work, please visit: www.mrw.interscience.wiley.com/eot
Advanced Wireless Networks
Author : Savo Glisic
Publisher : John Wiley & Sons
Page : 892 pages
File Size : 48,14 MB
Release : 2009-04-27
Category : Technology & Engineering
ISBN : 9780470745731
Book Description
With 40% new material the new edition of Advanced Wireless Networks provides a comprehensive representation of the key issues in 4G wireless networks. Focussing on cognitive, cooperative and opportunistic paradigms to provide further increase in network efficiency, the book explores and addresses issues in wireless internet, mobile cellular and WLAN, as well as sensor, ad hoc, bio-inspired, active and cognitive networks. It examines the problem of cross-layer optimisation and network information theory as well as adaptability and reconfigurability in wireless networks. This book is an integral description of future wireless networks and the interconnection between their elements. The information is presented in a logical order within each chapter making it ideal for all levels of reader including researchers involved in modelling and analysis of future networks as well as engineers working in the area. Each chapter starts with introductory material and gradually includes more sophisticated models and mathematical tools concluding with a comprehensive list of references. Fully updated throughout with five new chapters on Opportunistic Communications; Relaying and Mesh Networks; Topology Control; Network Optimization; and Cognitive Radio Resource Management Unifies the latest research on cognitive, cooperative and opportunistic paradigms in wireless communications Provides efficient analytical tools for network analysis Discusses security issues, an essential element of working with wireless networks Supports advanced university and training courses in the field Companion website containing extra appendix on Queuing theory
Co-channel Interference Cancellation for TDMA Cellular Systems
Author : Gordon L. Stüber
Publisher :
Page : 116 pages
File Size : 49,26 MB
Release : 1996
Category : Cell phone services industry
ISBN :
Book Description
Wiley Encyclopedia of Telecommunications, Volume 1
Author : John G. Proakis
Publisher : Wiley-Interscience
Page : 656 pages
File Size : 35,45 MB
Release : 2003
Category : Technology & Engineering
ISBN :
Book Description
"Contains 275 tutorial articles focused on modern telecommunications topics. The contents include articles on communication networks, source coding and decoding, channel coding and decoding, modulation and demodulation, optical communications, satellite communications, underwater acoustic communications, radio propagation, antennas, multiuser communications, magnetic storage systems, and a variety of standards"--V.1, p. v.
Third-Generation Systems and Intelligent Wireless Networking
Author : J. S. Blogh
Publisher : John Wiley & Sons
Page : 446 pages
File Size : 50,22 MB
Release : 2002-04-29
Category : Computers
ISBN : 9780470845196
Book Description
Of Non-Wraparound Network Performance -- Wrap-around Network Performance Results -- Performance Results over a LOS Channel -- Performance Results over a Multipath Channel -- Performance over a Multipath Channel using Power Control -- Performance of an AQAM based Network using Power Control -- UTRA, Adaptive Arrays and Adaptive Modulation -- Direct Sequence Code Division Multiple Access -- UMTS Terrestrial Radio Access -- Spreading and Modulation -- Common Pilot Channel -- Power Control -- Uplink Power Control -- Downlink Power Control -- Soft Handover -- Signal-to-Interference plus Noise Ratio Calculations -- Downlink -- Uplink -- Multi-User Detection -- Simulation Results -- Simulation Parameters -- The Effect of Pilot Power on Soft Handover Results -- Fixed Received Pilot Power Thresholds without Shadowing -- Fixed Received Pilot Power Thresholds with 0.5 Hz Shadowing -- Fixed Received Pilot Power Thresholds with 1.0 Hz Shadowing -- Relative Received Pilot Power Thresholds without Shadowing -- Relative Received Pilot Power Thresholds with 0.5 Hz Shadowing -- Relative Received Pilot Power Thresholds with 1.0 Hz Shadowing -- E[subscript c]/I[subscript o] Power Based Soft Handover Results -- Fixed E[subscript c]/I[subscript o] Thresholds without Shadowing -- Fixed E[subscript c]/I[subscript o] Thresholds with 0.5 Hz Shadowing -- Fixed E[subscript c]/I[subscript o] Thresholds with 1.0 Hz Shadowing -- Relative E[subscript c]/I[subscript o] Thresholds without Shadowing.
The Statistics of Interference in Narrowband TDMA Cellular Communications Systems
Author : Stephen P. McIntyre
Publisher :
Page : 110 pages
File Size : 17,98 MB
Release : 1997
Category :
ISBN :
Book Description
Stochastic Geometry Analysis of Multi-Antenna Wireless Networks
Author : Xianghao Yu
Publisher : Springer
Page : 178 pages
File Size : 22,61 MB
Release : 2019-03-27
Category : Computers
ISBN : 981135880X
Book Description
This book presents a unified framework for the tractable analysis of large-scale, multi-antenna wireless networks using stochastic geometry. This mathematical analysis is essential for assessing and understanding the performance of complicated multi-antenna networks, which are one of the foundations of 5G and beyond networks to meet the ever-increasing demands for network capacity. Describing the salient properties of the framework, which makes the analysis of multi-antenna networks comparable to that of their single-antenna counterparts, the book discusses effective design approaches that do not require complex system-level simulations. It also includes various application examples with different multi-antenna network models to illustrate the framework’s effectiveness.
OFDMA System Analysis and Design
Author : Samuel C. Yang
Publisher : Artech House
Page : 319 pages
File Size : 35,21 MB
Release : 2010
Category : Computers
ISBN : 1608070778
Book Description
Here's a unique resource that provides you with an up-to-date understanding of how to plan, analyze, and design next-generation broadband wireless networks. This comprehensive book includes all the necessary background information needed to fully understand the material and places emphasis on practical engineering know-how that can be readily applied to designing OFDM-based systems. You find detailed discussions on everything from the physical and media access control layers, to QoS and security functions. Rather than just offering simple explanations of standards, this invaluable book takes a close look at live, real-world systems, explaining how the technical features work and why they were adopted. Moreover, the author includes his own design frameworks and rules that have been developed through his own extensive research and experience. This comprehensive reference is supported with over 170 illustrations and more than 250 equations.
