Reuse Partitioning in Cellular Network with Two-Hop Fixed MIMO-OFDMA Relay Nodes

The next generation network with high data rate and large coverage is demanded. In the cellular network, the enhanced MIMO-OFDMA relaying technology has become one of the most promising solutions. In a relay-enhanced cellular, multiple Relay Stations (RSs) are deployed to assist transmissions between a Base Station (BS) and multiple Mobile Stations (MSs). However, the resource allocation becomes more complicated and crucial to achieve relaying gain of the potential capacity and coverage. Through enhanced relay stations in each cellular, this paper investigates the issue of reuse partitioning in cellular system with two-hop fixed MIMO-OFDMA relay nodes (FRNs). The simulation results show that compared with the conventional solution in cellular network, our proposed scheme not only improves the system capacity, but also provides better quality of service (QoS) for users located at cell edges.