文摘
英文文摘
论文说明：TABLE OF FIGURES
声明
CHAPTER 1 INTRODUCTION
1.1.Exordium
1.2.Evolution of Wireless Communications
1.3.Background and Motivation of the study
1.4.Prior Work
1.5.Objective and Contributions
1.6.Notation Summary
CHAPTER 2 MOBILE WIRELESS CHANNEL
2.1.Wireless Radio Channel
2.1.1 Propagation Characteristics of Mobile Radio Channels
2.1.2 Attenuation
2.1.2 Multipath Effects
2.2 Modeling of Mobile Radio Channels
2.2.1 Inter-Symbol(ISI)and Inter-Channel Interference(ICI)
2.2.2 COST 207
2.3 Multi Career Communication Systems
2.4 Orthogonal Frequency Division Multiplexing(OFDM)
2.4.1 OFDM Generation
2.4.2 Guard Interval
2.4.3 OFDM Received Signal
2.5 OFDM Challenges
2.5.1 Peak to Average power Ratio(PAPR)
2.5.2 Carrier Frequency Offset
2.6 Advantages and Drawbacks of OFDM
CHAPTER 3 MULTI ANTENNA OFDM SYSTEMS
3.1 MIMO Systems
3.2 Information Theory Of MIMO
3.2 MIMO System Model
3.3 MIMO OFDM Data Detection through Channel Analysis
3.3.1 Analysis of Channel Characteristics
3.4 Channel Estimation for Mobile MIMO OFDM Systems
3.4.1 System Model
3.4.2 EM-Based LS Channel Estimation
3.4.3 Low-Complexity MAP Channel Estimation
3.4.4 MAP Channel Estimation
3.4.5 Low Rank Approximated MAP Channel Estimation
3.4.6 EM-based MAP Channel Estimation
3.5 Data Detection for Mobile MIMO OFDM Systems
3.5.1 ZF and MMSE Detection
3.5.2 ICI-based MMSE Detection
3.6 SIC Detection
3.7 Simulation Results
3.8 Conclusion
CHAPTER 4 PERFORMANCE ANALYSIS OF CYCLIC DELAY DIVERSITY IN OFDM SYSTEMS
4.1 Antenna Diversity
4.1.1 Receiver Diversity
4.1.2 Transmitter Diversity
4.2 Cyclic Delay Diversity Code Structure
4.2.1 Transmitter Signal Model
4.3 Performance Analysis
4.3.1 Pair-wise Error Probability
4.3.2 CDD Received Signal Model
4.3.3 Transmission Rate
4.3.4 Full Diversity Criterion
4.3.5 Coding Gain
4.4 Space Frequency Codes based CDD in MIMO-OFDM systems
4.4.1 A Space Frequency Framework Based on CDD
4.4.2 Simulation Results
4.4.3 Summary
4.5 Pilot Channel Estimmion of SFC-CDD
4.5.1 Efrect of SFC-CDD on Channel Characteristics
4.5.2 Conventional Channel Estimation of OFDM Systems
4.5.3 Sampling theorem：
4.5.3 Pilot Construction
4.5.4 Zero and Non-zero Pilot Pattern
4.6 Proposed channel estimator for SFC-CDD
4.6.1 Necessary condition for the virtual pilot grid
4.6.2 Sufficient condition to provide a set of optimum phase shifted pilot sequences
4.6.3 Wiener Filter Estimaion
4.6.4 Minimum Squared Estimation
4.7 Summary
CHAPTER 5 SPACE-TIME BLOCK CODING AND CYCLIC DELAY DIVERSITY
5.1.Overview
5.1.1 Delay Diversity Scheme
5.2 Alamouti Space-Time Code
5.2.1 Maximum Likelihood Decoding
5.2.2 Maximum Ratio Combining
5.3 Transmit Diversity
5.4 STBC for Real Signal Constellations
5.4.1 STBC for Complex Signal Constellations
5.4.2 Decoding of STBC
5.5 Space-Time Block Codes with pilot channel estimation
5.5.1 Rake Receiver with Pilot Aided Channel Estimator
5.6 Comparison of Space Time Codes and Cyclic Delay Diversity
5.6.1 Simulation and Discussion
5.6.2 Space Time Block with Cyclic Delay Diversity
5.6.3 Simulations
5.7 Summary
CONCLUSION AND FUTURE WORK
REFERENCES
PUBLICATIONS
ACKNOWLEDGEMENTS
