A Hybrid Algorithm for Optimization of Base Station Power Consumption and Throughput Improvement

The heterogeneous network (HetNet) which consists of several small cell base stations (BSs) and an overlaid macro cell BS is a promising solution to accomplish very high data rate and energy-efficient communication. The design of energyefficient mechanisms and radio resource allocation among BSs is an important issue in HetNet. There are a variety of ON/OFF switching algorithms for BSs in the literature, however, none of these algorithms jointly consider the resource allocation problem. In this paper, we propose a hybrid interference-aware channel segregation based dynamic channel assignment (IACSDCA) and BS sleep mode algorithm. This algorithm helps to mitigate the co-channel interference (CCI), experienced by user equipments (UEs). Simulation results show that by applying the proposed IACS-DCA approach along with a game-theoretic based algorithm for intelligent BSs ON/OFF switching, higher energy-efficiency can be achieved compared to the conventional approaches.