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Energy efficient femtocell based architecture for low coverage areas in WiMAX

Femtocells are low power base stations operating in licensed spectrum with the intent to improve coverage and performance of voice and broadband services. The use of data hungry devices such as, tablets, smart phones and other wireless devices has rapidly been increasing in recent years and is driving the need to provide higher speed connections, more capacity and better quality of service. This article presents energy efficient femtocell based architecture for low coverage areas of wimax to improve indoor coverage of cellular mobile devices in the areas where coverage is weak or intermittent. It demonstrates the coverage is significantly improved introducing femtocells in low coverage areas and the total network capacity can be enhanced many folds as compared to macrocell networks. Simulation results show that the proposed architecture performs better in terms of different parameters like Throughput, End-to-End Delay, Voice Traffic Received and Mean Opinion Score (MOS).