With rician channel model, both Line of Sight (LOS) and non Line of Sight(NLOS) components are simulated between transmitter and receiver. MATLAB provides built in function by name ricianchan as explained below along with rician matlab code-With rici

Rician衰落通道用于对视线（LOS）进行建模，其中因子K被定义为LOS的平均功率与非视线（NLOS）的平均功率的比值。 修改b）中的代码，分别实现K = -40 dB和15 dB的Rician衰落。(A Rician fading channel is used to model the channel with line of sight (LOS), where a factor K is defined as the ratio of the mean power of the LOS