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Multi-Carrier Spread-Spectrum & Related Topics : Third International Workshop, September 26-28, 2001, Oberpfafenhofen, Germany - Khaled Fazel

Multi-Carrier Spread-Spectrum & Related Topics

Third International Workshop, September 26-28, 2001, Oberpfafenhofen, Germany

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

Hardcover Published: 28th February 2002
ISBN: 9780792376538
Number Of Pages: 376

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Stefan Kaiser Khaled Fazel Radio System Design German Aerospace Center (DLR) Marconi Communications lnstitute of Communications and Navigation D-71522 Backnang, Germany D-82234 Wessling, Germany We are currently observing that frequency spectrum is a limited and valuable resource for wireless mobile communications. A good example can be observed among European network operators for the prices to pay for frequency bands for UMTS/IMT2000. Keeping this in mind, the fIrst goal when designing future wireless communication systems has to be the increase in spectral effIciency by allowing higher flexibility for the system design and deployment. The development in digital communications in the past years has enabled effIcient modulation and coding techniques for robust and spectral effIcient data, speech, audio and video transmission. Here, we should mention two interesting and successful techniques. These are the multi-carrier modulation (e. g. OFDM) and the spread spectrum technique (e. g. DS-CDMA). During the last decade of this millennium the technique of multi-carrier transmission for wireless broadband multimedia applications has received wide interest. Its fIrst great success was in 1990 as it was selected for the European Digital Audio Broadcasting (DAB) standard. Its further prominent success was in 1995 and 1998 as it was selected as modulation scheme for the European Digital Video Broadcasting (DVB-T) standard and in three broadband wireless indoor standards, namely European ETSI-HIPERLAN/2, American IEEE-802. 11a and Japanese MMAC, respectively.

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: General
Format: Hardcover
Language: English
Number Of Pages: 376
Published: 28th February 2002
Publisher: SPRINGER VERLAG GMBH
Country of Publication: US
Dimensions (cm): 24.77 x 16.66  x 2.13
Weight (kg): 0.81