A Joint Resource Allocation Scheme for Multiuser Two-Way Relay Networks

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Executive Summary

In this paper, the authors study the problem of resource allocation in Amplify-and-Forward (AF) based multiuser two-way relay network that is operated under Orthogonal Frequency Division Multiple Access (OFDMA) modulation. They formulate an end-to-end throughput maximization problem subject to limited power constraint at individual user and relay. The optimization targets to find the best sub-carrier allocation to each user, subcarrier pairing at the relay, as well as the power allocation at all nodes, which turns out to be a mixed integer programming problem.

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