Investigation on Distributed Antennas Deployment Method for Indoor Line-of-Sight Multiple Input Multiple Output Wi-Fi System

Generally, it is difficult to increase the regular MIMO channel capacity between transmitter and receiver for indoor Line-of-sight (LoS) communication due to the channel correlation is always high. Therefore, in this paper, we proposed a distributed multiple antennas deployment method over relay to optimize the downlink multiple input multiple output (MIMO) channel capacity by simply adjusting the adjacent antenna distance of relay. The simulation result shows that using the proposed deployment method under certain circumstance, the MIMO channel capacity can be approximately 115% improved in maximum than that in the non-relay MIMO case.