Dissertation > Excellent graduate degree dissertation topics show

Research on the PAR Reduction of an OFDM Signal Using PTS Method

Author: ZhangPeiLong
Tutor: KuoYongHong
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: OFDM PAR reduction PTS method
CLC: TN919.3
Type: Master's thesis
Year: 2009
Downloads: 103
Quote: 2
Read: Download Dissertation

Abstract


In recent years, OFDM has seen rising popularity as a high-speed transmission technique which can provide greater immunity to ISI. OFDM has been successfully used in systems like ADSL, WLL, DAB, HDTV, WLAN and so on, and it will become a key technique in 4G mobile communication systems. However, OFDM has a drawback of high PAR in its application, which directly affects the performance of the whole system.In this thesis, the PAR problem and the PAR reduction techniques are researched. A low complexity PTS method was realized in the thesis and some improvements to the method were made. Through simulation, some comparisons among the PAR reduction performances and computational complexities of the conventional PTS method, the low complexity PTS method and the improved PTS method were made. The simulation results proved that the conventional PTS method had the optimal performance, but its computational complexity increased exponentially with the number of subblocks. The low complexity method had the lowest computational complexity but its performance was the worst. The improved method had a performance only 0.5 dB poorer than that of the conventional method and its complexity was greatly lower than that of the conventional method, which proved that the improved method can achieve good PAR reduction performance at low computational complexity.

Related Dissertations

  1. Synchronization and Channel Estimation Algorithm in Bursted OFDM System and Its Implementation on FPGA,TN919.3
  2. The Research on Reliability of Low-Voltage Power Line Communication,TM73
  3. A Study of the Methods to Reduce Peak-to-average Power Ratio of MIMO-OFDM System,TN919.3
  4. Research on Sidelobe Suppression for NC-OFDM Systems,TN919.3
  5. Research on Channel Estimation Technique in OFDM System,TN919.3
  6. The Anti-interference Research of Cell in LTE System,TN929.5
  7. Study on Frequency Offset Estimation in High-Speed Mobile Environment,TN919.3
  8. Study on the Related Parameters of High-Speed Mobile Channel,TN919.3
  9. Study on the High-Speed Mobile Channel Estimation,TN919.3
  10. The Low Power Operation Design of OFDM Communication System,TN919.3
  11. OOK-OFDM Hybrid Modulation and Channel Coding of Visible Light Communication,TN911.22
  12. Research of Adaptive OFDM Modulation and Demodulation Project Based on Coal Mine Communication,TN919.3
  13. Research and Design of FFT Processor for MIMO-OFDM Applications,TN919.3
  14. The Low Power Research of Adaptive Receiver of OFDM Digital Base-band,TN851
  15. Link Enhancement Technology in High Frequency Sky-wave Communication,TN925
  16. Research of the ICI Mitigation in OFDM Cooperative Communication Systems,TN919.3
  17. OFDM Channel Estimation Algorithm Based on Recovery Algorithm,TN919.3
  18. Research on Resource Allocation in OFDM Based Cognitive Radio Systems,TN919.3
  19. Windowing Technology Improves the ICI Performance of Cooperative OFDM System,TN919.3
  20. Research on the Turbo Decoding Based on Respond Correlation in OFDM,TN911.2
  21. Design and Implementation of Semi-Blind Channel Estimation Based on Matrix Decomposition for MIMO-OFDM Systems,TN919.3

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Data communication > Data transmission technology
© 2012 www.DissertationTopic.Net  Mobile