Dissertation > Excellent graduate degree dissertation topics show

Synchronization, Channel Estimation and Diversity Technologies for Cooperative Communication Systems

Author: ZhangZhiPeng
Tutor: ZhaoMinJian
School: Zhejiang University
Course: Information and Communication Engineering
Keywords: Cooperative Communication Relay collaborative Distributed multi- antenna synchronization Channel estimation Cooperative Diversity
CLC: TN919.3
Type: Master's thesis
Year: 2012
Downloads: 64
Quote: 0
Read: Download Dissertation


MIMO (Multiple-Input-Multiple-Output) technology is considered to be a possible to improve the data transmission rate of the wireless communication system, improve the transmission quality of important research direction. MIMO technology uses antenna arrays increases the utility of the system size, increased costs, increased its difficult to realize. To overcome this drawback, the introduction of a cooperative communication system based on multi-relay. The cooperative communication system based on multi-relay use distributed in a different spatial position of the relay antenna mutually cooperating the virtual traditional based on multi-antenna diversity system, does not significantly increase in the case of the terminal implementation complexity to achieve diversity. Based multi-relay cooperative communication technology combines MIMO technology, relay technology, etc., at a lower cost to increase the system's multi-user diversity gain, and thus become the most promising in the field of wireless communications research hotspot. This article will be the key technology in cooperative communication signal transmission in-depth study of include collaborative communication synchronization technology, channel estimation techniques and diversity techniques. (1) multi-relay cooperative communication system synchronization technology, synchronization technology for distributed multi-antenna systems with a focus on. Improved synchronization algorithm based on unequal length sequence, to enhance its timing synchronization frequency offset robustness. After this chapter, a time-frequency two-dimensional synchronization algorithm applies to relay a large number of zoom a prequel collaborative communication system with high synchronization accuracy. (2) multi-relay cooperative communication system channel estimation techniques, focusing zoom prequel mode. First introduced estimation algorithm based on training sequence channel frequency domain frequency domain. The next chapter presents a cycle the quadrature training sequence time domain channel estimation algorithm, the algorithm has higher estimation accuracy and low computational complexity, and apply to the relay in larger quantities amplification the prequel collaborative communication system. After this chapter proposed estimation algorithm based on the the Chu sequence common pilot channel time domain, and take full advantage of the nature of the Chu sequence, with good resistance to time-varying channel capacity. (3) multi-relay cooperative communication systems, diversity techniques, key research Zoom relay node pass mode OFDM transmission system under full-rate, full diversity, low-complexity space-time coding schemes, as well as the destination node signal detection algorithm. Extended orthogonal space-time codes in the frequency selective fading channel, quasi-orthogonal space-time codes applied to cooperative communication systems, and enhance the diversity performance through limited feedback. Finally, in the basis of a review article, article-theory analysis and simulation results, improvement ideas and methods to explore future collaborative communication system.

Related Dissertations

  1. Synchronization and Channel Estimation Algorithm in Bursted OFDM System and Its Implementation on FPGA,TN919.3
  2. Study on Implementation Technology of Channel Estimation in OFDM System Based on DSP,TN919.3
  3. The Technology Research on Channel Coding and Channel Estimation in MC-CDMA Systems,TN929.533
  4. Research on Error Controller of LTE Physical Layer,TN929.5
  5. Research on Self-Organizing Networks in LTE-A Heterogeneous Networks,TN929.5
  6. Research on Pilot-based Channel Estimation in OFDM System,TN919.3
  7. Study on the Related Parameters of High-Speed Mobile Channel,TN919.3
  8. Study on the High-Speed Mobile Channel Estimation,TN919.3
  9. Research on Synchronization and Channel Estimation in OFDM Systems,TN919.3
  10. Research and Design of Electronic Equalization Based on Most Likelihood Sequence Estimation,TN911.5
  11. The Low Power Research of Adaptive Receiver of OFDM Digital Base-band,TN851
  12. Research on Compressed Sensing and the Application in UWB Channel Estimation,TN925
  13. Compensation of Channel Non-Reciprocity in TDD MIMO Systems,TN919.3
  14. Investigation on Channel Estimation Based on Pilot Arrangement in MIMO-OFDM System,TN919.3
  15. Research of Synchronization and Equalization Technology in DRM System,TN934.3
  16. Research on Channel Estimation of MIMO-OFDM System,TN919.3
  17. 802.16 physical layer based OFDM system simulation and key technology research,TN919.3
  18. Study on the Technology of OFDM in Aircraft TT & C System,TN919.3
  19. Channel Estimation Based on FFT and Improvedalgorithm for OFDM Systems,TN919.3
  20. Simulation of Data Transmission in Physical Layer with Different Channel Models,TN919.3

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