Performance comparison of non-relay and relay scenario in IEEE 802.16j network

In this paper, we have investigated the use of transparent relay station to improve the throughput of the IEEE 802.16j Mobile Multi-hop Relay (MMR) WiMAX network. Simulations are performed using OPNET Modeler, and only VoIP application is considered. The result shows transparent relay station does improve the throughput of WiMAX network with some coverage extension.