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Optimal Power Control for OFDM Signals over Two-Way Relay with Physical Network Coding |
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| Authors: | Dingcheng Yang Zhenghai Wang Hao He Jisheng Xu School of Electronic Information Wuhan University Wuhan China |
| Institution: | Dingcheng Yang,Zhenghai Wang,Hao He,Jisheng Xu School of Electronic Information,Wuhan University,Wuhan 430079,China |
| Abstract: | This paper describes an optimal power allocation scheme for orthogonal frequency division multiple access two-way relay networks with physical network coding.The aim is to enhance the achievable sum rate of the terminals for a constrained total transmit power.Convex optimization is used to derive a closed-form solution for the power allocation between the relay node and the two terminals.This reduces the variable dimensionality of the objective function for the power assignment problem among multiple carrie... |
| Keywords: | resource allocation power control two-way relay physical network coding orthogonal frequency division multiple access (OFDMA) |
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