Regenerative Strategy for Sum-rate Enhancement in Bi-directional Three-node Cooperation |
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| Authors: | Hu Ning Zhong Xiaofeng Zhao Ming Wang Jing |
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| Institution: | Tsinghua National Laboratory for Information Science and Technology Department of Electronic Engineering,Tsinghua University,Beijing 100084,P.R.China |
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| Abstract: | In bi-directional three-node cooperation,one regenerative strategy with network coding and power optimization is proposed for system sum-rate under a total energy constraint.In this paper,the network coding and power optimization are applied to improve system sum-rate.But max-min optimization problem in power allocation is a NP-hard problem.In high Signal-to-Noise Ratio regime,this NP-hard problem is transformed into constrained polynomial optimization problem,which can be computed in polynomial time.Althou... |
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| Keywords: | bi-directional cooperation network coding power optimization regenerative strategy max-min optimization |
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