Cellular Antenna Location Optimization in Distributed MIMO Systems

In this paper, the optimization of antenna location of a distributed MIMO (DMIMO) systems in a circular cell based on advanced particle swarm optimization(PSO) algorithm is analyzed. Firstly, a composite fading channel including small scale fading, path loss and shadow fading is established; then, a closed form expression of downlink average ergodic capacity under highersignal-to-noise (SNR) condition is deduced; next, the optimal position of antenna ports in the circular cell is quickly searched by PSO through dividing the cell into several predefined areas. Simulation results show that the searched position of antenna ports in the cell is very close to the optimaltheoretical location.