Numerical Analysis of Indoor MIMO-SDM Transmission Using Antenna Selection Diversity

Channel capacity of indoor Multi-input Multioutput Space Division Multiplexing (MIMO-SDM) with antenna selection diversity is analyzed using the ray tracing method. A large number of receiving antennas are divided into several blocks. Each block is corresponding to a receiving MIMO channel, and the number of transmitting channel is assumed to be equal to the number of receiving channel. The number of divided blocks is changed and the channel capacity is evaluated in many antenna locations. It is found that, in the case of a weak fading environment, decreasing the number of divided blocks can improve the channel capacity per channel. On the other hand, increasing the number of blocks can lead to increase the channel capacity per channel in the case of a rich fading environment.