Dissertation > Excellent graduate degree dissertation topics show

Research on Spectrum Allocation Technology of Cognitive Radio

Author: ZhangTingJian
Tutor: ShaoShiXiang
School: Nanjing University of Posts and Telecommunications
Course: Communication and Information System
Keywords: Cognitive radio Spectrum allocation Graph theory Game theory
CLC: TN925
Type: Master's thesis
Year: 2012
Downloads: 47
Quote: 0
Read: Download Dissertation


In recent years, the demand for wireless communications service is increasing, the requirement for the rate of wireless communication is increasing too. But our static spectrum allocation mechanism results in lot of free spectrum resource in space, the spectrum is wasted. The cognitive radio technology with smart looking and efficient use of idle spectrum resources just right provides the opportunity to use the free spectrum resource. Therefore, spectrum allocation technology of cognitive radio has also been more and more broadly concerned.Considering the principles of improving the cognitive radio network performance, two improved algorithms of spectrum allocation respectively based on graph theory and game theory are proposed in this paper.Firstly, graph theory is used to establish a mathematical model of spectrum allocation for cognitive radio spectrum allocation algorithm in order to avoid interference. According to the different network structures, spectrum allocation algorithms based on graph theory with different allocation objectives are studied. After describing the basic ideas and allocation processes of these algorithms, a spectrum allocation algorithm based on allocation sequence for centralized network is proposed. Simulation results show that the algorithm has significantly reduced the time overhead compared with existing algorithms under the same design criteria.Secondly, game theory is introduced to study the spectrum allocation for cognitive radio. Game theory and cognitive radio spectrum allocation problem is associated to build game theory based spectrum allocation model, then the existing spectrum allocation models are introduced. On this basis, a game theory based spectrum allocation algorithm with new utility function is proposed and the best response strategy is analyzed for the game process. The simulation results prove the superiority of the algorithm to improve the signal interference ratio performance compared with existing algorithm.

Related Dissertations

  1. The Simulation and Analysis of Spectrum Sensing Based on Higher Order Cumulants,TN911.23
  2. Government harmony handle mass incidents Game Analysis,D630
  3. The Research of Credit Management Countermeasure to Network Group Buying in China,F203
  4. Research on Sidelobe Suppression for NC-OFDM Systems,TN919.3
  5. Research on Core Stakeholders of Public Project Based on Game Theory,F224.32
  6. Research on Contracts Design of Call Center Outsourcing Based on Effort Level as Uncontractible Factor,F224.32
  7. Research on the Marshalling-scheduling Model and Algorithms of Freight Trains Based on Game Theory,O225
  8. Construction and Application of the Game Model Based on VMI for H Company,F253.4
  9. Research on Incentive System of the Circular Agriculture Development,F323.22
  10. Study and Design on Compact Wideband and Narrowband Combined Antennas for Spectrum Sensing Applications,TN822
  11. Research on Power Control for Cooperative Communications Based on Cognitive Radio System,TN925
  12. Research on Cooperative Spectrum Sensing Schemes Based on Random Matrix Theory and Compressed Sensing,TN925
  13. Research on Spectrum Detection Technology from Compressed Sensing,TN925
  14. Sensing Data Flasification Attack Defense for Cooperative Spectrum Sensing Schemes in Cognitive Radio Systems,TN925
  15. Research and Software Development on the Basis of the Graph Theory in Road Alignments Modeling,U412.33
  16. Research on Cooperative Spectrum Sensing of Cognitive Radios,TN925
  17. Defense Against Primary User Emulation Attack Based on Channel Characteristics in Cognitive Radio Networks,TN925
  18. Research Onspectrum Sensing Algorithm in Cognitive Radio,TN925
  19. Research on Dynamic Resources Allocation of Multi-user CR-OFDM System,TN919.3
  20. Research on Cooperative Transmission Technology in Cognitive Radio Networks,TN925
  21. Research on Spectrum Sensing and Spectrum Access Strategy in Cognitive Radio Network,TN925

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
© 2012 www.DissertationTopic.Net  Mobile