Distributed resource allocation for spatially distributed irregular cells

Abstract

It is expected that the number of mobile users will increase rapidly in the coming future for uplink communication. Therefore, the future cellular network should accommodate large number of these mobile users and their resource allocation. The frequency reuse concept being used massively to overcome this resource constraint issue. The massive reuse of frequency creates serious interference problem. To overcome the interference issue from frequency reuse, the fractional frequency reuse concept has introduced for hexagonal/regular cells and recently for irregular cells with sectoring. The problem of resource allocation for the irregular cell edge users is critical due to not fixed cell size and location which dramatically reduce the spectrum efficiency of the system. The proposed scheme provides a new way to analyze the resource allocation by spatially partitioning a cell edge coverage into multiple regions with different dynamic resource distribution for cell edge users. The noncooperative game for subcarrier allocation is considered aiming at maximizing the cell edge users throughput and error free transmission by reducing the impact of interference to and from neighboring cells. This proposed scheme enhances the system performance by reducing improved data rate.