文摘
英文文摘
论文说明：LIST OF FIGURES、LIST OF TABLES
声明
CHAPTER 1 INTRODUCTION
1.1 Review and Background:
1.2 OFDM History
1.3 Coded OFDM
1.4 OFDM Advantages
1.5 OFDM Disadvantages
CHAPTER 2 An Overview of OFDM
2. Orthogonal Frequency-Division Multiplexing
2.1 Stage of prolonged in OFDM:
2.2 OFDM in multicarrier
2.3 The Concept of Culticarrier Transmission:
Chapter 3 HARQ Mechanism
3.1 What are ARQ and HARQ?
3.2 Different Strategies for HARQ
3.2.1 Introduction to ARQ and HARQ:
3.2.2 HARQ in Context of Turbo-codes
3.3 Scheduling in HARQ
3.3.1 Buffer:
3.3.2 Scheduler
3.3.3 Hybrid type-Ⅱ ARQ/AMS
3.4 Frame Structure
3.5 User Allocation in OFDM:
3.5.1 Grouped Carriers
3.6 Adaptive Frequency Hopping
3.7 Comb Spread Carriers
3.8 Multiple Transmitter Cells
CHAPTER 4 Simulation and Performance Evaluation
4.1 OFDM Transmitted and Received Signal
4.1.1 The Constellation before and after Channel Estimation
4.1.2 Ordinary OFDM Power spectrum before theTtransmission
4.1.3 Comparison between Theoretical and Simulation BER
4.1.4 Ordinary OFDM Transmitted and Received Power Spectrum
4.1.5 Ordinary OFDM Transmitted and Received Signal
4.2 HARQ Simulations (first):
4.3 HARQ on Turbo-coded
4.4 Results
Conclusions
REFERENCES
ACKNOWLEDGEMENT
APPENDIX A
