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Multi-carrier Spread-spectrum and Related Topics - Khaled Fazel

Multi-carrier Spread-spectrum and Related Topics

By: Khaled Fazel (Editor), Stefan Kaiser (Editor)

Hardcover

Published: 28th February 2002
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The benefits and success of multi-carrier (MC) modulation on one side and the flexibility offered by the spread spectrum (SS) technique on the other side has motivated many researchers to investigate the combination of both techniques since 1993. This combination, known as multi-carrier spread-spectrum (MC-SS), benefits from the main advantages of both systems and offers high flexibility, high spectral efficiency, simple detection strategies, narrow-band interference rejection capability and more. The basic principle of this combination is straightforward: the spreading is performed as direct sequence spread-spectrum (DS-SS) but instead of transmitting the chips over a single carrier, several sub-carriers could be employed. The MC modulation and demodulation can easily be realized in the digital domain by performing IFFT and FFT operations. The separation of the users' signals could be performed in the code domain. This means that the MC-SS system performs the spreading in the frequency domain, which allows for simple signal detection strategies. Since 1993, MCSS has been deeply studied and new alternative solutions have been proposed. Meanwhile, deep system analysis and comparison with DS-CDMA have been performed that show the superiority of MC-CDMA. The aim of this volume is to edit the ensemble of contributions and research results in this field presented during three days at the Third International Workshop on Multi-Carrier Spread-Spectrum (MC-SS) and Related Topics, held in Oberpfaffenhofen, Germany.

Editorial Introductionp. ix
Acknowledgementp. xiii
General Issues
A Review of Multicarrier CDMAp. 3
Time Division Duplex-CDMAp. 13
Timing Synchronization for the Uplink of an OFDMA Systemp. 23
Does OFDM Really Prefer Frequency Selective Fading Channels?p. 35
Applications
An Adaptive Orthogonal Multicarrier Multiuser CDMA Technique for a Broadband Mobile Communication Systemp. 45
Performance of Low Complex Antenna Diversity Techniques for Mobile OFDM Systemsp. 53
Common Architectures for TD-CDMA and OFDM Based Mobile Radio Systems Without the Necessity of a Cyclic Prefixp. 65
Multi-Carrier CDMA for Air Traffic Control Air/Ground Communicationp. 77
Development and Implementation of an Advanced Airport Data Link Based on Multi-Carrier Communicationsp. 85
Coding and Modulation
Potential and Benefits of the Spatial Dimension in Case of MC-CDMAp. 99
Variable Spreading Factor Orthogonal Frequency and Code Division Multiplexing (VSF-OFCDM)p. 113
Spreading Sequences Selection for Uplink and Downlink MC-CDMA Systemsp. 123
Serial Code Concatenation with Complex Valued Walsh-Hadamard Codes Applied to OFDM-CDMAp. 131
A Study on Down-link Capacity of FD-MC/CDMA for Channels with Frequency Selective Fadingp. 139
On the Use of DMT and FMT for MC-CDMA Systemsp. 147
A Delayed-Multiplexing Multi-Carrier CDMA Systemp. 155
Detection, Multiplexing, Interference Cancellation
Comparison of MC-CDMA and COFDM/TDMA Techniques Taking into Account the System Load for Wireless Indoor Communicationsp. 165
Decorrelation MUD for MC-CDMA in an Uplink Transmission Modep. 173
A Downlink SS-OFDM-F/TA Packet Data System Employing Multi-User Diversityp. 181
Joint Detection in Multi-Antenna and Multi-User OFDM Systemsp. 191
Rate-Adaptive Coded Multiuser OFDM for Downlink Wireless Systemsp. 199
Adaptive Subspace Multiuser Detection for Multicarrier DS-CDMAp. 209
Optimization of Capacity Assignment in MC-CDMA Transmission Systemsp. 217
Optimum Coefficient Matrix of Multi-Dimensional Lattice Filter for OFDM Transmissionp. 225
Capacity Enhancement of DS-CDMA Downlink Through Multicarrier with Frequency Overlappingp. 233
Combating Near Far Effects of Linear MMSE Multiuser Detection in Coded OFDM-CDMAp. 241
Downlink Performance of Randomized OFDM Accessp. 249
Implementation of a SIC Based MC-CDMA Base Station Receiverp. 257
Investigation on Using Channel Information of MC/CDMA for Pre-Rake Diversity Combining in TDD/CDMA Systemp. 265
Multicarrier CDMA System with Parallel Interference Cancellation in Fading Channelp. 273
Synchronization and Channel Estimation
Iterative Blind Channel Estimation for OFDM Receiversp. 283
Non-Data Aided EM-Based Channel Estimation for OFDM Systems with Time-Varying Fading Channelsp. 293
Joint Directions of Arrival and Delay Channel Characteristics Estimation Using Circular Array Antenna for MC/CDMAp. 303
Channel Estimation for Time-Hopping Impulse Radiop. 313
Comparison of Channel Estimation Techniques for a Single Carrier System Using Frequency Domain Equalization and HIPERLAN/2 Like OFDM Systemsp. 325
Realization and Implementation
Array Antenna Assisted Doppler Spread Compensator for OFDMp. 337
Filter Design Methodology Controlling the Impact on Bit Error Rate Performances in WLAN-OFDM Transceiversp. 345
Proposal of ISM Band High Data Rate Wireless LAN System Using SS-OFDM Techniquep. 353
Joint Technique of PTS and Adaptive Clipping Level Control with Filtering for OFDM Peak Power Reductionp. 361
Radio Link Availability Enhancement by Applying Spread-Spectrum Techniquep. 369
Table of Contents provided by Ingram. All Rights Reserved.

ISBN: 9780792376538
ISBN-10: 0792376536
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 392
Published: 28th February 2002
Publisher: Kluwer Academic Publishers
Country of Publication: US
Dimensions (cm): 23.4 x 15.6  x 2.2
Weight (kg): 1.61