A Simulation Study on the Downlink Performance of Non-Uniform Dense Cellular Networks

The spiraling growth of mobile data traffic has fuelled the development of future-generation cellular networks. Datahungry applications have gained massive popularity owing to the usage of high-tech devices. Aggressively reusing the available spectrum has largely been considered a viable solution to this data deluge. Meanwhile, combating the excessively increasing interference in the networks requires employing efficient interference management schemes. The majority of the available literature focuses primarily on the employment of interference mitigating schemes for randomly deployed network infrastructures. However, owing to the heterogeneity in the network, it is important to investigate the utility of such schemes in spatially dependent deployment scenarios. This paper investigates the impact of fractional frequency reuse incorporation on the downlink performance of spatially dependent cellular networks. Simulations are used to thoroughly evaluate the utility of the adopted approach. It is observed that the utility of the adopted scheme significantly improves the network coverage albeit at the cost of decreased spectrum efficiency.