Multi-User MIMO Based on Millimeter Wave Massive Analog Relay Stations
Suwen Ke, Kei Sakaguchi, Gia Khanh Tran, Masashi Iwabuchi, Tomoki Murakami · 2023
Millimeter wave (mmWave) is an indispensable technology in 5G communication system, as its wider bandwidth assures larger channel capacity than previous 4G/LTE communication system. However, due to the high path loss in mmWave band, the deployment of more base stations is required to achieve the same coverage. Massive analog relay MIMO system, in which massive analog relay stations are deployed to construct artificial channel and enhance communication coverage, had been proposed to solve this issue. In this paper, we further consider multi-user MIMO scenario using massive analog relay MIMO system. We introduce a beam selection algorithm and resource block allocation algorithm to utilize the resource and improve the performance of the whole multi-user MIMO system. In addition, the feasibility and validity of this method is demonstrated by numerical simulation showing that the channel capacity can be improved.