User Selection Scheme for the Performance Improvement of the Secondary System in Cognitive Radio Systems using Underlay Mode 


Vol. 38,  No. 3, pp. 249-257, Mar.  2013


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  Abstract

Recently, data traffic is significantly increased by high rate data service. As a result, radio spectrum is considered one of the most scarce and valuable resources for wireless communications. For the solution of this problem, cognitive radio(CR) has been proposed as an efficient means to opportunistic spectrum sharing between primary (licensed) users and cognitive radio users. In this paper, user selection scheme in CR networks is proposed for additional consideration of secondary system. The proposed user selection scheme mitigates interference to primary user by using orthogonal channel vectors while improves performance of secondary system. Simulation results show that the proposed scheme achieves 1.62bps/Hz higher average throughput of whole system than one of the existing scheme.

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  Cite this article

[IEEE Style]

R. Choe and Y. Byun, "User Selection Scheme for the Performance Improvement of the Secondary System in Cognitive Radio Systems using Underlay Mode," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 3, pp. 249-257, 2013. DOI: .

[ACM Style]

Romi Choe and Youn-Shik Byun. 2013. User Selection Scheme for the Performance Improvement of the Secondary System in Cognitive Radio Systems using Underlay Mode. The Journal of Korean Institute of Communications and Information Sciences, 38, 3, (2013), 249-257. DOI: .

[KICS Style]

Romi Choe and Youn-Shik Byun, "User Selection Scheme for the Performance Improvement of the Secondary System in Cognitive Radio Systems using Underlay Mode," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 3, pp. 249-257, 3. 2013.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880