Sumrate Maximization of Two Way Relay Networks Using Cooperative Protocals
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Publication date: 2019-11-25
Eurasian J Anal Chem 2018;13(3):em2018150
This paper considers the relay assisted co-operative transmission in wireless networks, Where multiple user pair conduct bidirectional communications via multiple relays based on Orthogonal Frequency Division Multiplexing (OFDM) transmission. The main objective is to improve the overall system performance by maximizing the total throughput. It deals with the joint optimization of channel and relay assignment, subcarrier allocation as well as relay selection. The problem is formulated as a combinatorial optimization problem. It mainly deals with two-way relaying and to make it more governable. It adopted a graph-based approach. Thus the problem is solved optimally in polynomial time by transforming it into Maximum Weighted Bipartite Matching (MWBM) problem. The simulation result shows the comparison of the proposed algorithm and the bench mark along with two relaying protocols. And to evaluate the network total throughput versus transmit power per node and the number of relays.