A Non-Stationary Channel Model with Correlated NLoS/LoS States for ELAA-mMIMO
NLoS/LoS 상태 와 관련 된 ELAA-mMIMO 비평 온 채널 모델
ELAA-mMIMO Stationary Channel Model with Correlative NLoS/LoS State
ELAA-mMIMO Nonstationary channel model with Correlated NLoS/LoS State
модель неровного канала ELAA-mMIMO со статусом NLoS/LoS
Jiuyu Liu ¹, Yi Ma ¹, Jinfei Wang ¹, Na Yi ¹, Songyan Xue ², Rahim Tafazolli ¹, Fan Wang ²
¹ 5GIC and 6GIC, Institute for Communication Systems, University of Surrey, Guildford, UK, GU2 7XH
² Huawei Technologies Co., Ltd.
In this paper, a novel spatially non-stationary channel model is proposed for link-level computer simulations of massive multiple-input multiple-output (mMIMO) with extremely large aperture array (ELAA). The proposed channel model allows a mix of non-line-of-sight (NLoS) and LoS links between a user and service antennas. The NLoS/LoS state of each link is characterized by a binary random variable, which obeys a correlated Bernoulli distribution.
The correlation is described in the form of an exponentially decaying window. In addition, the proposed model incorporates shadowing effects which are non-identical for NLoS and LoS states. It is demonstrated, through computer emulation, that the proposed model can capture almost all spatially non-stationary fading behaviors of the ELAA-mMIMO channel. Moreover, it has a low implementational complexity. With the proposed channel model, Monte-Carlo simulations are carried out to evaluate the channel capacity of ELAA-mMIMO. It is shown that the ELAA-mMIMO channel capacity has considerably different stochastic characteristics from the conventional mMIMO due to the presence of channel spatial non-stationarity.