Adaptive Spectrum Sensing/Transmission Scheduling for Cognitive Radio

Luxi LU  Wei JIANG  Haige XIANG  Wu LUO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.2   pp.635-638
Publication Date: 2012/02/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.635
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
adaptive sensing scheduling,  cognitive radio,  spectrum sensing,  

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Summary: 
In this letter, we propose an adaptive sensing/transmission scheduling policy in which the secondary user senses the spectrum when its channel condition is poor for transmission. The adaptive sensing/transmission scheduling is modeled as a Markov process and a near-optimal algorithm is proposed to determine the sensing/transmission policy. Simulation results verify our analysis and demonstrate the superiority of the proposed algorithm.