Power Allocation for Amplify-and-Forward Opportunistic Relaying Systems
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概要
- 論文の詳細を見る
In this letter, power allocation methods are devised for Amplify-and-Forward (AF) opportunistic relaying systems aiming at minimizing the outage probability. First, we extend the result on outage probability in [8] and develop an approximate expression to simplify the power allocation problem. A corresponding optimization problem is constructed and proved to be convex. Then an iterative numerical method is proposed to find the optimal power allocation factor. We also propose a near-optimal method which can directly calculate the power allocation factor to reduce computational complexity. Numerical results show that the proposed methods have a similar performance with the ideal one, and outperform equal power allocation significantly with little overhead.
- （社）電子情報通信学会の論文
- 2009-11-01
著者
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Zhu Shihua
Xi'an Jiaotong Univ. Xi'an Chn
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Zhu Shihua
School Of Electronics And Information Engineering Xi'an Jiaotong University
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HUI Hui
School of Electronics and Information Engineering, Xi'an Jiaotong University
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LV Gangming
School of Electronics and Information Engineering, Xi'an Jiaotong University
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Lv Gangming
Department Of Information And Communication Engineering Xi'an Jiaotong University
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Lv Gangming
School Of Electronics And Information Engineering Xi'an Jiaotong University
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Hui Hui
Department Of Information And Communication Engineering Xi'an Jiaotong University
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