International Journal of Wireless and Microwave Technologies(IJWMT)
ISSN: 2076-1449 (Print), ISSN: 2076-9539 (Online)
Published By: MECS Press
IJWMT Vol.3, No.1, Sep. 2013
Optimal Spectrum Access for Users in Multi-Channel Cognitive Radio Networks
Full Text (PDF, 257KB), PP.11-25
Cognitive Radio, a software defined radio, is an emerging technology which uses opportunistic spectrum access (OSA) for the efficient utilization of the spectrum. Its main aim is to utilize the unused portions of the spectrum by allowing unlicensed users (secondary users) to transmit data in absence of primary users. In this paper the assignment of multiple primary and secondary users in a multiple channel system is addressed with the sole aim of optimizing the total throughput. We have considered an optimal spectrum access (OSA) algorithm for the allotment of both the primary and secondary users in a multiple channel system and compared the results with the well-known meta-heuristic techniques such as Simulated Annealing (SA) and Tabu Search (TS). The results reveal that OSA algorithm is more efficient as compared to SA and TS as far as throughput optimization is considered.
Cite This Paper
Vivek Agrawal, Utkarsh Tiwari, Vishal Agarwal, Palaniandavar Venkateswaran,"Optimal Spectrum Access for Users in Multi-Channel Cognitive Radio Networks", IJWMT, vol.3, no1, pp.11-25, 2013.DOI: 10.5815/ijwmt.2013.01.02
Danijela Cabric, Shridhar Mubaraq Mishra, Robert W. Brodersen “Implementation Issues in Spectrum Sensing for Cognitive Radios”, Asilomar Conference on Signals, Systems, and Computers, 2004.
Simon Haykin “Cognitive Radio: Brain-Empowered Wireless Communications”, IEEE JOURNAL selected on areas in communications, Volume: 23, No. 2, February, 2005.
Senhua Huang Xin Liu, Zhi Ding “Opportunistic Spectrum Access in Cognitive Radio Networks”, IEEE INFOCOM 2008 Proceedings, Volume: 24, Issue: 3, Publisher: IEEE, Pages: 79-89.
Partha Pratim Bhattacharya “A Novel Opportunistic Spectrum Access for Applications in Cognitive Radio”: Ubiquitous Computing and Communication Journal Volume 4 No 2 Page 24 Website: www.ubicc.org.
Samir K Sadhukhan, Swarup Mondal, Saroj R Biswas, Partha Bhaumik, Debashish Saha“ Post-deployment Tuning of UMTS Cellular Networks through Dual-homing of RNCs” Submitted to IEEE COMSNET 2009.