Circuit power selection algorithm for maximum energy-efficiency of uplink MU-MIMO system in multi-cell environment

In this paper, we develop a circuit power selection algorithm to maximize energy efficiency (EE) of mobile users for the uplink multi-user multiple input multiple output system (MU-MIMO) in multi-cell environment. In proposed algorithm, antenna selection algorithm is proposed for circuit power optimization considering a inter-cell interference. We verify the performance of proposed algorithm using simulation in multi-cell MU-MIMO system environment. Simulation results show that proposed algorithm can achieve EE gain with little complexity increment compared with conventional algorithms.