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| Cross-Layer Power Allocation Scheme for Two-Way Relaying System |
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Abstract The cross-layer optimization for two phase Amplify-and-Forward (AF) two-way relaying system is studied and an optimal power allocation scheme is proposed in this paper. Our goal is to find the optimal power allocation factors to maximize the weighted sum effective capacity of two sources in the physical layer while guaranteeing the statistical delay Quality-of-Service (QOS) requirement for each source in the data-link layer. This problem is formulated into a convex optimization problem, and an algorithm is presented to solve the problem. Simulation results show that the proposed optimal power allocation scheme can achieve better weighted sum effective capacity than equal power allocation scheme when the relay is close to either of the source nodes.
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| DOI:10.12733/jics20150189 |
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