Dissertation > Excellent graduate degree dissertation topics show

Spectrum Sensing Technology Based on Cognitive Radio

Author: HouLiMei
Tutor: XuChengQian
School: Yanshan University
Course: Communication and Information System
Keywords: Cognitive radio Energy Detection Cooperative detection D-S evidence theory Detection performance
CLC: TN98
Type: Master's thesis
Year: 2010
Downloads: 329
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of wireless communication technology , spectrum resources become increasingly strained . Spectrum resources is a non-renewable resources , in order to get a fuller spectrum resource utilization , cognitive radio technology emerged, and has been extensively studied and developed. Spectrum sensing cognitive radio technology has become the basis and premise . Current research on spectrum sensing technology focused on single-node and multi-node cooperative spectrum sensing spectral detection . Cooperation detection can handle multiple cognitive user information is more accurate detection of the use of spectrum to judge. To further improve the performance of spectrum sensing , this paper analyzes the existing research results , based on the co- spectrum detection and spectral detection uncertainties and other aspects of the in-depth study , this paper mainly focused on the following aspects . First, in order to overcome the threshold of the same spectrum detection performance impact , the use of grouping ideas, propose a multi-user collaboration based on energy detection spectrum sensing algorithm, the algorithm detected from two cognitive user cooperation extended to the case of multiple recognition cooperative spectrum sensing users know the situation . Secondly, in cognitive radio networks , due to the randomness of the channel , resulting spectral detection process uncertainty. Uncertainty on the spectrum in order to minimize the impact of testing , consider the case of conflict of evidence , the DS evidence theory is improved and improved algorithm is applied to cognitive radio spectrum detection technology , allowing DS evidence theory in cognitive radio spectrum better detection applications . Finally, the paper compares the simulation by experiments cooperative spectrum detection and single-node spectrum detection performance , the focus of this paper demonstrates the multi-user collaboration based on energy detection spectrum detection algorithm, and finally through the simulation analysis in the paper , summed up the optimal multi-user combinations.

Related Dissertations

  1. Research on Joint Target Detection for Dual-Sensor Image and System Implementation,TP391.41
  2. Application of Information Fusion Technology of Improved D-S Evidence Theory in Fault Diagnosis of Rotating Equipments of Generating Units,TM307.1
  3. Uncertain Information Fusion Method Based on Random Sets and Application on Fault Diagnosis of Wind Turbine Generators,TM315
  4. Research & Development of Small Current Grounding Fault Diagnosis of Electric Power Distribution Network and Its Application,TM862
  5. Study and Design on Compact High-performance Ultra-wideband Diversity Antennas,TN822.8
  6. Research on Limited Feedback in Cognitive Radio Networks,TN925
  7. The user scheduling MIMO cognitive and physical layer security technology research,TN925
  8. The Research and Implementation of Fault Diagnosis Service for Smart Grid Fault Analysis System,TM76
  9. A Faulty Line Selection Study and the Corresponding Equipment of Non-effectively Grounded System Single-phase-to-ground Fault Based on Integrative Methods,TM862
  10. Research on Integral Calibration Techniques for Heat Flow Meter by Hot-Box Method,TU111.2
  11. Research on Resolving Ability of Coherent MIMO Radar,TN958
  12. Research of A Medium and Long-term Load Forecasting Model and Method,TM715
  13. Study on the Condition Monitoring and Fault-indicating System for Mining HV Distribution Equipment,TM642.1
  14. Research on Furnace Flame Detection Based on MSIF,TM621.2
  15. The Simulation and Analysis of Spectrum Sensing Based on Higher Order Cumulants,TN911.23
  16. The Research on Risk Assessment Method of Inmorfation System Based on Fuzzy Analytic Hierarchy Process and Evidence Theory,TP309
  17. Study on the Structural Damage Identification Based on the Information Fusion,TU312.3
  18. The Key Technologies of Spectrum Sensing Security in Cognitive Radio Networks,TN925
  19. Study on Performance Analysis and Simulation Technology of Distributed Satellites SAR-GMTI System,TN958
  20. A Study of Dynamic Spectrum Access Practical Algorithm in Cognitive Radio,TN929.52
  21. Efficient FFT Cognitive Radio Networks clipping algorithm,TN925

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio , telecommunications, measurement techniques and instruments
© 2012 www.DissertationTopic.Net  Mobile