Optimal number of users in Co operative spectrum sensing in WRAN using Cyclo Stationary Detector

Optimal number of users in Co - operative spectrum sensing in WRAN using Cyclo - Stationary Detector

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2013 by IJETT Journal
Volume-4 Issue-7                      
Year of Publication : 2013
Authors : Manish B Dave

Citation 

Manish B Dave. "Optimal number of users in Co - operative spectrum sensing in WRAN using Cyclo - Stationary Detector". International Journal of Engineering Trends and Technology (IJETT). V4(7):2806-2810 Jun 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.

Abstract

Cognitive radio allows unlicensed users to access licensed frequency bands through dynamic spectrum access so as to reduce spectr um scarcity. This requires intelligent spectrum sensing techniques. This paper investigates the use of cyclo - stationary detector and performance evaluation for Digital Video Broadcast - Terrestrial (DVB - T) signals. Generally, DVB - T is specified in IEEE 802.2 2 standard in VHF and UHF TV broadcasting spectrum. Simulations results show that implementing co - operative spectrum sensing help in better utilization of resources. The paper further proposes to find number of optimal users in a scenario to optimize the d etection probability and makes use of the particle swarm optimization (PSO) technique to find an optimum value of threshold

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Keywords
Cognitve Radio, WRAN, Spectrum Sensing, Co - operative Spectrum Sensing , Cyclo - Stationary detector, DVB - T , Particle Swarm Optimization(PSO), Threshold Adaptation .