Multicarrier Techniques for 4G Mobile Communications

As the research for future fourth generation (4G)mobile communication systems has been launched worldwide in major companies and academic institutions, forward-thinking professionals are striving to gain a thorough understanding of the cutting-edge technologies and design techniques that will make these systems work. This unique new book helps you do just that. It provides you with a comprehensive introduction to multicarrier techniques for 4G mobile communications with a special focus on the analytical aspects. Radio channel characteristics and phenomena are explained along with discussions on the advantages and disadvantages of OFDM scheme. You get in-depth explanations of new multicarrier-related techniques, MC-CDMA, research on several 4G systems and a look at several problems to be overcome regarding these systems.

Thisauthoritative reference is designed to help you better understand the conceptand detail of the ODFM scheme and how to carry out theoretical analysis on theperformance of transmission systems in radio channels. The book shows how OFDMhas been successfully adopted as a modulation scheme in communications systemsand broadcasting systems such as ADSL, wireless LANs, DVB-T. Moreover, it looksat OFDM as a promising modulation scheme in future 4G mobile communicationsystems.

Contents:

Dedication. Preface.Acknowledgement. Authors’ Biographies.

Introduction- Mobile Communications Systems: Past, Present and Future. Towards 4GSystems. Multicarrier Techniques for 4G Systems. Preview of the Book.

Characteristicsof Multipath Fading Channels - Introduction. Rayleigh and Ricean FadingChannels. Multipath Delay Profile. Frequency Selective and FrequencyNonselective Fading Channels. Spaced-Time Correlation Function. Time Selectiveand Time Nonselective Fading Channels. Examples of Multipath Fading Channels.

Principleand History of MCM/OFDM - Introduction. Origin of OFDM. Use of Discrete FourierTransform. Insertion of Cyclic Prefix for Current Form of OFDM. Conclusions.

OFDMCharacteristics - Introduction. Radio Channel Model. Bit Error Rate in AWGNChannel. Bit Error Rate of CPSK-Based OFDM System in Rayleigh Fading Channels. BitError Rate of DPSK-Based OFDM System in Rayleigh Fading Channels. Robustnessagainst Frequency Selective Fading. Robustness against Man-Made Noises. 4.8Sensitivity to Frequency Offset. Sensitivity to Nonlinear Amplification. Sensitivityto A/D and D/A Resolutions. Conclusions.

Pilot-AssistedDFT Window Timing/Frequency Offset Synchronization and Subcarrier Recovery - Introduction.Pilot-Assisted DFT Window Timing/Frequency Offset Estimation Method. Pilot-AssistedDFT Window Timing Synchronization and Subcarrier Recovery Method. Chaotic PilotSymbol Generation Method. Conclusions.

BlindMaximum Likelihood-Based Joint DFT Window Timing/Frequency Offset/DFT WindowWidth Estimation - Introduction. System Model. Maximum Likelihood ParameterEstimation for Cyclostationary Signal. Numerical Results and Discussions. Conclusions.

CodedOFDM Scheme to Gain Frequency Diversity Effect - Introduction. ConvolutionalEncoding/Viterbi Decoding. Symbol Interleaved Coded OFDM Scheme. BitInterleaved Coded OFDM Scheme. Numerical Results and Discussions. Conclusions.

Applicationsof OFDM - Introduction. Digital Broadcasting. 5GHz-Band Wireless LANs. Others. Conclusions.

Combinationof OFDM and CDMA - Introduction. Channel Model. DS-CDMA System. MC-CDMA System.Conclusions.

FutureResearch Directions - Introduction. Where Will 4G Systems Come From? VariantsBased on MC-CDMA Scheme. OFDM Adaptive Array Antenna. MIMO-OFDM. LinearAmplification of OFDM Signal with Nonlinear Components. Conclusions.

Listof Abbreviations. List of Keywords.

ShinsukeHara isan associate professor in the advanced communications laboratory, department ofelectronics, information systems, and energy engineering in the graduate schoolof engineering, Osaka University, Osaka, Japan. Dr. Hara received her B.E.,M.S. and Ph.D. in communication engineering from Osaka University.

Ramjee Prasad is Director, Center for Teleinfrastruktur (CTIF), Aalborg University. He is the author of CDMA for Wireless Personal Communications (Artech, 1996) and Universal Wireless Personal Communications (Artech, 1998). Dr. Prasad earned his Ph.D. in communications from the Birla Institute of Technology.