In the indoor environments, however, due to the limited range, the assumption of pseudowired is not reasonable [63], [64]. On the other hand, owing to the explosive growth of mobile **data** demands as well as to overcome the limited range of mmWave communications, in a practical mmWave communication system, the number of deployed APs over both public and private areas increases tremendously. For example, a large number of APs must be deployed in scenarios such as enterprise cubicles and conference rooms to provide seamless coverage. In this case, the interference in the network can be divided into two portions: interference within each BSS, and interference among different BSSs [65]. As shown in Fig. 3, when the two links in BSS1 and BSS2 are communicating in the same slot t, since AP1 directs its beam towards the laptop, AP1 will have interference to the laptop. If the distance between them is short, the service of the laptop will be degraded significantly.