MIMO Antenna Array Impact on Channel Capacity for a Realistic Macro-Cellular Urban Environment

In Multiple Input Multiple Output (MIMO) systems the antenna array configuration in the Base Station (BS) and Mobile Station (MS) has a large influence on the available channel capacity. In this paper, the authors first introduce a new Frequency Selective (FS) MIMO framework for macro-cells in a realistic urban environment. Next, MIMO configuration characteristics are investigated in order to maximize capacity, mainly the number of antennas and inter-antenna spacing. Channel and capacity simulation results are presented for the city of Lisbon, Portugal, using different antenna configurations.