Generalized location-based resource allocation for OFDMA cognitive radio systems

Mahdi Ben Ghorbel, Haewoon Nam, Mohamed-Slim Alouini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


Cognitive radio is one of the hot topics for emerging and future wireless communication. Cognitive users can share channels with primary users under the condition of non interference. In order to compute this interference, the cognitive system usually use the channel state information of the primary user which is often impractical to obtain. However, using location information, we can estimate this interference by pathloss computation. In this paper, we introduce a low-complexity resource allocation algorithm for orthogonal frequency division multiple access (OFDMA) based cognitive radio systems, which uses relative location information between primary and secondary users to estimate the interference. This algorithm considers interference with multiple primary users having different thresholds. The simulation results show the efficiency of the proposed algorithm by comparing it with an optimal exhaustive search method. © 2010 IEEE.
Original languageEnglish (US)
Title of host publication2010 7th International Symposium on Wireless Communication Systems
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Print)9781424463169
StatePublished - Sep 2010


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