Analysis of Beamforming in a Complex Indoor Environment
摘要
In a wireless system, transmitted signals suffer from multipath propagation and can deteriorate the received signal strength. Beamforming is a viable solution in a multiple-input-multiple-output system to improve the overall transmission by focusing the transmitted gain in a specific direction. This paper presents an evaluation of beamforming in a complex multipath indoor environment where the line-of-sight path is blocked. In specific, evaluations are conducted by steering the main beam in the direction of the different paths of the transmitted signal in three cases. From the results, it is shown that the traditional beamforming that focuses on the directional path may not be the best approach in complex indoor environments.