ICT기반 스마트기기 창의인재양성 사업팀의 논문/저서입니다.
글 읽기
| 제 목 |
[유희정 교수님]Heejung Yu, "Optimal channel sensing maximising sum rate in cognitive radio with multiple secondary links" |
| 글쓴이 |
관리자 |
| 작성일 |
2014.07.21 |
조 회 |
1,613 |
Heejung Yu, "Optimal channel sensing maximising sum rate in cognitive radio with multiple secondary links," Transactions on Emerging Telecommunications Technologies, vol. 7-8, pp. 777-784, Nov.-Dec., 2013
Abstract
The channel sensing problem maximising the sum rate of primary and secondary users in cognitive radio networks is considered. Previously, the optimal sensing characteristics, that is false alarm and detection probabilities, in cognitive radio with single secondary user were investigated. In this paper, we extend to cases with multiple secondary users, and the characteristics of a sum rate and the optimal sensing are investigated under a given primary activity factor. Additionally, the asymptotic behaviour of the optimal sensing point is examined as the number of secondary users increases under the round robin and p-ALOHA multiple access schemes. It is shown that the optimal sensing point converges to a constant, which is determined by the primary activity factor, primary and secondary link qualities.
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