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 multi-carrier 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 multi-carrier-related techniques, MC-CDMA, research on several 4G systems and a look at several problems to be overcome regarding these systems. This authoritative reference is designed to help you better understand the concept and detail of the ODFM scheme and how to carry out theoretical analysis on the performance of transmission systems in radio channels. The book shows how OFDM has been successfully adopted as a modulation scheme in communications systems and broadcasting systems such as ADSL, wireless LANs, DVB-T. Moreover, it looks at OFDM as a promising modulation scheme in future 4G mobile communication systems.
Dedication.Preface. Acknowledgement. Authors ' Biographies. Introduction ë Mobile Communications Systems: Past, Present and Future. Towards 4G Systems. Multicarrier Techniques for 4G Systems. Preview of the Book.; Characteristics of Multipath Fading Channels -Introduction. Rayleigh and Ricean Fading Channels. Multipath Delay Profile. Frequency Selective and Frequency Nonselective Fading Channels. Spaced-Time Correlation Function. Time Selective and Time Nonselective Fading Channels. Examples of Multipath Fading Channels.; Principle and History of MCM/OFDM -Introduction. Origin of OFDM. Use of Discrete Fourier Transform. Insertion of Cyclic Prefix for Current Form of OFDM. Conclusions.; OFDM Characteristics -Introduction. Radio Channel Model. Bit Error Rate in AWGN Channel. Bit Error Rate of CPSK-Based OFDM System in Rayleigh Fading Channels. Bit Error Rate of DPSK-Based OFDM System in Rayleigh Fading Channels. Robustness against Frequency Selective Fading. Robustness against Man-Made Noises. 4.8 Sensitivity to Frequency Offset. Sensitivity to Nonlinear Amplification. Sensitivity to A/D and D/A Resolutions. Conclusions.; Pilot-Assisted DFT Window Timing/Frequency Offset Synchronization and Subcarrier Recovery -Introduction. Pilot-Assisted DFT Window Timing/Frequency Offset Estimation Method. Pilot-Assisted DFT Window Timing Synchronization and Subcarrier Recovery Method. Chaotic Pilot Symbol Generation Method. Conclusions.; Blind Maximum Likelihood-Based Joint DFT Window Timing/Frequency Offset/DFT Window Width Estimation -Introduction. System Model. Maximum Likelihood Parameter Estimation for Cyclostationary Signal. Numerical Results and Discussions. Conclusions.; Coded OFDM Scheme to Gain Frequency Diversity Effect -Introduction. Convolutional Encoding/Viterbi Decoding. Symbol Interleaved Coded OFDM Scheme. Bit Interleaved Coded OFDM Scheme. Numerical Results and Discussions. Conclusions.; Applications of OFDM -Introduction. Digital Broadcasting. 5GHz-Band Wireless LANs. Others. Conclusions.; Combination of OFDM and CDMA -Introduction. Channel Model. DS-CDMA System. MC-CDMA System. Conclusions.; Future Research Directions -Introduction. Where Will 4G Systems Come From? Variants Based on MC-CDMA Scheme. OFDM Adaptive Array Antenna. MIMO-OFDM. Linear Amplification of OFDM Signal with Nonlinear Components. Conclusions.; List of Abbreviations. List of Keywords.;
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Shinsuka Hara
Shinsuke Hara is an associate professor in the advanced communications laboratory, department of electronics, information systems, and energy engineering in the graduate school of engineering, Osaka University, Osaka, Japan. Dr. Hara received her B.E., M.S. and Ph.D. in communication engineering from Osaka University.
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Ramjee Prasad
Ramjee Prasad is director of the Center for TeleInFrastruktur (CTIF), Aalborg University. He is the author of OFDM for Wireless Communications Systems (Artech House, 2004), coauthor of Applied Satellite Navigation Using GPS, GALILEO, and Augmentation Systems, Multicarrier Techniques for 4G Mobile Communications, and WLANs and WPANs towards 4G Wireless, (Artech House, 2005, 2003, 2003), co-editor of Wireless IP and Building the Mobile Internet (Artech House, 2003), and is the author/coauthor of several other books published by Artech House.