Energy-efficient Performance of Cognitive Relay Network with Joint Sensing-transmission Time Duration and Power Allocation

doi:10.1016/S1005-8885(11)60297-5

中国邮电高校学报(英文) ›› 2012, Vol. 19 ›› Issue (5): 32-38.doi: 10.1016/S1005-8885(11)60297-5

Energy-efficient Performance of Cognitive Relay Network with Joint Sensing-transmission Time Duration and Power Allocation

张国翊¹,王勇²,²,徐键²,²,杨俊权²,²,王力²,²

ZHANG Guo-yi, WANG Yong, XU Jian, LUO Hui-hong

收稿日期:2012-02-16 修回日期:2012-06-05 出版日期:2012-10-31 发布日期:2012-10-08
通讯作者: 张国翊 E-mail:zgysam@gmail.com

Energy-efficient Performance of Cognitive Relay Network with Joint Sensing-transmission Time Duration and Power Allocation

ZHANG Guo-yi, WANG Yong, XU Jian, LUO Hui-hong

ZHANG Guo-yi, WANG Yong, XU Jian, LUO Hui-hong

Received:2012-02-16 Revised:2012-06-05 Online:2012-10-31 Published:2012-10-08
Contact: Guo-yi Zhang E-mail:zgysam@gmail.com

摘要/Abstract

摘要：

A jointly optimal sensing-transmission time duration and power allocation scheme for a cooperative relay network is developed by maximizing the network energy efficiency. In particular, observing that the spectrum sensing and data transmission duration lies within a strict interval, the jointly optimal solutions of sensing-transmission duration and power allocation are obtained by sequential optimization. The superiority of the proposed scheme in relay-assisted transmission mode over non-relay transmission mode in terms of energy-efficiency has been verified by quantitative simulation results.

关键词:

energy efficiency, cooperative relay network, spectrum sensing, data transmission, power allocation

Abstract:

Key words:

energy efficiency, cooperative relay network, spectrum sensing, data transmission, power allocation

参考文献

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Energy-efficient Performance of Cognitive Relay Network with Joint Sensing-transmission Time Duration and Power Allocation

Energy-efficient Performance of Cognitive Relay Network with Joint Sensing-transmission Time Duration and Power Allocation

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