To build or construct a large massive MIMO network, firstly the outside base stations will be fitted with large antenna arrays and among them some are dispersed around the hexagonal cell and linked to the base station through opticalfibercables,aidedwithmassiveMIMOtechnologies. The mobile users present outside are usually fitted with a certain number of antenna units but with cooperation a large virtualantennaarraycanbeconstructed,whichtogetherwith antenna arrays of base station form virtual massive MIMO links. Secondly, every building will be installed with large antenna arrays from outside, to communicate with outdoor base stations with the help of line of sight components. The wireless access points inside the building are connected with the large antenna arrays through cables for communicating with indoor users. This will significantly improves the energy efficiency, cell average throughput, data rate, and spectral efficiency of the cellular system but at the expense of increased infrastructure cost. With the introduction of such an architecture, the inside users will only have to connect or communicate with inside wireless access points while larger antenna arrays remained installed outside the buildings [8]. For indoor communication, certain technologies like WiFi, Small cell, ultra wideband, millimeter wave communications [16], and visible light communications [17]