Dissertation > Excellent graduate degree dissertation topics show

Strategic Analysis of Dynamic Spectrum Access Algorithm Based on the POMDP Network Awareness

Author: ZhangZuo
Tutor: ZhuHongBo
School: Nanjing University of Posts and Telecommunications
Course: Communication and Information System
Keywords: Cognitive Radio Dynamic Spectrum Access POMDP
CLC: TN925
Type: Master's thesis
Year: 2012
Downloads: 101
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of wireless communication technology in recent years, networkfrequency recourse becomes increasingly scarce. Wireless spectrum shortage becomes anobstacle of sustainable development of applying wireless communication and service. Cognitiveradio can use the spectrum which authorized users not use, so it can greatly improve the networkspectral efficiency.This thesis mainly researches cognitive radio dynamic spectrum access based on the theoryof POMDP. Limited to hardware and other reasons, the cognitive radio users can not fullyobserve the network. The purpose of this thesis is to improve the throughput of the entiresecondary users in the OSA network, avoid affecting communications of the primary users. Thisthesis proposes two access algorithms: optimal channel sensing and access strategy, andreduced-state suboptimal strategy. The two algorithms are both based on the network status, andthe latter algorithm use the greedy algorithm. This thesis simulate the network throughput of theusers above access algorithm under free error perceived model and error perceived model. Thesimulation results prove the correctness and rationality of two strategies, the throughput of OSAnetwork increase significantly.

Related Dissertations

  1. Research on Spectrum Sensing in Cognitive Radio Systems,TN925
  2. Cognitive radio spectrum detection optimization algorithm and MAC protocol design,TN925
  3. Study on Reliability of Industrial Wireless Networks and Testbed Design,TP273
  4. Cognitive radio spectrum access network algorithm,TN925
  5. Research on Applicable Approximate POMDP Solution Algorithm,TP18
  6. Research on the Spectrum Sharing for Cognitive Radios Based on Game Theory,F621
  7. Single-Node and Cooperative Spectrum Sensing Based on Cyclostationarity,TN925
  8. Research on Efficient Cooperative Spectrum Sensing,TN92
  9. Cognitive radio networks dynamic spectrum allocation and sharing,TN925
  10. Research on Spectrum Allocation Algorithm for Cognitive Radio Networks,TN925
  11. Research on Spectrum Handover in Cognitive Radio Networks,TN925
  12. The Simulation and Evaluation of Key Technologies in MAC Layer of Cognitive Radio,TN925
  13. Spectrum Sensing and Modulation Recognition Based on Cyclotationary Spectrum in Cognitive Radio,TN925
  14. Multi-objective Genetic Algorithm Based Cognitive radio decision engine,TN925
  15. Cognitive radio NC-OFDM technology research,TN925
  16. Cognitive Radio Network Dynamic Spectrum Allocation and Routing Protocols,TN925
  17. The Simulation and Analysis of Spectrum Sensing Based on Higher Order Cumulants,TN911.23
  18. Performance-throughput for Spectrum Sensing Based on Relay Cooperation,TN925
  19. The Application of the Separation of the Signals with the Same Frequency in the Cognitive Radio,TN925
  20. Secondary users based on cognitive radio receiver OFDM demodulation scheme design and FPGA realization,TN919.3
  21. Resource Allocation Algorithm for WRAN Systems,TN929.5

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