Dissertation > Excellent graduate degree dissertation topics show

Research on PAPR Reduction for OFDM Systems

Author: LiuHua
Tutor: WangJinKuan
School: Northeastern University
Course: Communication and Information System
Keywords: OFDM PAPR PTS Threshold
CLC: TN929.53
Type: Master's thesis
Year: 2011
Downloads: 1
Quote: 0
Read: Download Dissertation


Orthogonal frequency division multiplexing is a high speed transmission technology under wireless environment circumstance, high efficiency advantages of spectrum and resistance of multipath fading, widely used in satellite communications, digital radio and broadband wireless access network and other fields, and has become the key technology of the next generation wireless communication system. But orthogonal frequency division multiplexing systems exist serious peak-average power ratio, causing the distortion of signal, making the system performance serious deterioration, so high peak-average power reduction technology is one of the OFDM’s key technology and how to effectively restrain peak-average-power has important theoretical significance and application value.This paper deeply studied the fundamental principle of orthogonal frequency division multiplexing systems, and further expounds the key technology of systems urgently to be solved. Analyzed the reasons of the peak-average power ratio emerge, the effects of amplifier’s nonlinear to OFDM systems, solutions of OFDM systems’ peak-average-power ratio, etc.This article focuses on the partial transmission sequence algorithm hold characteristics of good inhibiting performance of PAPR and high computational complexity, and puts forward the based on preset threshold improved partial transmission sequence algorithm. Based on traditional partial transmission sequence algorithm, through narrowing the search space of phase factor, and significantly reduce the computational complexity, reduce the cost of hardware implementation. At the same time, considering the OFDM systems of high peak power signal appears low probability, puts forward the preset threshold’s T-PTS algorithm, further decreasing the PTS algorithm of computational complexity. Simulation experiments show that the proposed new algorithm can obtain the good performance and complexity compromise, has the very high practicability.

Related Dissertations

  1. Synchronization and Channel Estimation Algorithm in Bursted OFDM System and Its Implementation on FPGA,TN919.3
  2. Resrarch on Multisignatures and Multisigncryptions from Identity-based,TN918.1
  3. Research on Spread Spectrum Code Acquisition of Double Threshold Based on Sliding Correlator,TN914.42
  4. The Research on Reliability of Low-Voltage Power Line Communication,TM73
  5. Citrus Image Segmentation Based on Genetic Algorithm,TP391.41
  6. Macroinvertebrate Assemblages and Its Application in the Water Management,X824
  7. Subliminal subliminal anxiety of material of different emotional cues students Inhibition of Return,B842
  8. Welding Orientation System Development of Container Reinforced Plate Based on Opencv,U169
  9. The Research and Realization of Multi-Carrier Modulation Method Based on the Low-Frequency Elastic Wave Channel,TN919.3
  10. Research on Tracking and Registration Algorithm in Augmented Reality,TP391.9
  11. A Study of the Methods to Reduce Peak-to-average Power Ratio of MIMO-OFDM System,TN919.3
  12. Research on Sidelobe Suppression for NC-OFDM Systems,TN919.3
  13. Syntheses, Crystal Structures, and Adsorption Properties of Novel Tetracyanometallate-based Coordination Polymers,O631.3
  14. The Threshold Voltage Model and Series Resistance Extraction Method of Polycrystalline Silicon Thin Film Transistors,TN321.5
  15. The Key Technologies Research of CI-OFDM Systems,TN919.3
  16. An Analysis of Image Segmentation Based on Otsu Method and Mathematic Morphology,TP391.41
  17. Research on PAPR Reduction Based on OFDM Systems,TN919.3
  18. Dynamical Multi-threshold Template Created and Application on DSP Image Processing,TP391.41
  19. Adaptive Pilot Density Based Channel Estimation Algorithm for OFDM System,TN919.3
  20. Threshold proxy signature and its extension,TN918.1
  21. Fog image enhancement method,TP391.41

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets )
© 2012 www.DissertationTopic.Net  Mobile