Transmission Techniques for Emergent Multicast and Broadcast Systems

by Mario Marques da Silva; Americo Correia; Rui Dinis; Nuno Souto; Joao Carlos Silva

• ISBN13: 9781439815946
• ISBN10: 1439815941
• Format: Nonspecific Binding
• Copyright: 2010-05-25
• Publisher: Taylor & Francis

Summary

Describing efficient transmission schemes for broadband wireless systems, Transmission Techniques for Emergent Multicast and Broadcast Systems examines advances in transmission techniques and receiver designs capable of supporting the emergent wireless needs for multimedia broadcast and multicast service (MBMS) requirements. It summarizes the research and development taking place in wireless communications for multimedia MBMS and addresses the means to improved spectral efficiency to allow for increased user bit rate, as well as increased capacity of the digital cellular radio network.The text highlights essential requirements for new services, providing a clear understanding of the corresponding fundamentals and theory needed to fulfill such requirements. Although the schemes and transmission and detection techniques presented are applicable to a wide range of digital communication systems, including wireless, cellular, and satellite, the text maintains a focus on multimedia services using multicast and broadcast techniques. It also:Reports on important enhancements, including transmission techniques, receiver designs, and multi-resolution schemes for modern broadband wireless systemsCovers key aspects in the development of emergent services to support the requirements of new servicesDiscusses the transition from Wideband Code Division Multiple Access (WCDMA) to block transmission techniquesConsiders advanced receivers such as iterative (turbo) equalization schemes for these techniquesThis complete resource includes coverage of Multiple Input'Multiple Output (MIMO), hierarchical constellations, multi-resolution transmission, macro-diversity principles, and different frequency reuse schemes. It also proposes advances for different propagation and multi-user environments, using both WCDMA and Orthogonal Frequency Division Multiple Access (OFDMA). The text concludes by explaining how to effectively combine these techniques and enhancements for the purpose of implementing the evolved MBMS (E-MBMS).

Table of Contents

Introduction

Requirements for Multimedia Broadcast and Multicast Services

Transmission Techniques to support Wireless Advances for MBMS Requirements

Current and Emergent Wireless Systems

Transmission Techniques for Broadband Systems

Spread Spectrum Communications

OFDM Schemes

Single Carrier with Frequency-Domain Equalization

Performance Comparisons between OFDM and SC-FDE

Channel Estimation

Channel Estimation Requirements

Conventional Channel Estimation

Channel Estimation with Implicit Pilots

Channel Estimation for CDMA Transmissions

Hierarchical Constellations

Constellation Design

BER Analysis of Hierarchical M-QAM Constellations

Channel Estimation Issues

Multi-Antenna Systems

Channel Capacity for Multi-Antenna Systems

Transmit & Receive Diversity Gains

Spatial Multiplexing

Antenna Correlation

Channel Estimation

Multiresolution Techniques for MBMS

Introduction to Multi-Resolution using WCDMA and OFDMA

Objectives and Requirements

Evaluation Methodology and Simulation Assumptions

System Level Performance Results

Appendix: WCDMA Channel Model

Channel Characterization

Channel Model Construction

References

Index

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