Optimum Sensing Time and Power Allocation for Cognitive Systems

doi:10.13190/jbupt.201104.89.tangjm

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2011, Vol. 34 ›› Issue (4): 89-92.doi: 10.13190/jbupt.201104.89.tangjm

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Optimum Sensing Time and Power Allocation for Cognitive Systems

Received:2010-11-02 Revised:2011-04-24 Online:2011-08-28 Published:2011-07-18

Abstract

Abstract:

In overlay sharing cognitive radio networks, an optimal scheme is proposed for improving cognitive system performance, it proves to minimize the outage probability on the premise of guarantee fixed detection performance. Analysis and simulation show that the optimal scheme can improve outage performance of cognitive system and enhance transmission reliability of cognitive network.

Key words: cooperative sensing, cooperative transmission, power allocation, outage probability

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Optimum Sensing Time and Power Allocation for Cognitive Systems

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