As we know the network in this world has been evolve much faster. Advance technologies such as wireless and mobile in cellular system are growing explosively. If this trend goes on the cellular network traffic load will increase and it would be difficult to supply large services to mobile devices. To go on with the same network without any traffic problems device-to-device technology is the best solution. In this paper we have addressed methods to maximize the ultra-dense 5G cellular system. This paper also discusses about the radio resources blocks should be provided to D2D users. The fifth generation (5G) portable correspondence frameworks will profit tremendously with the expansion of their activity to mm Wave groups. To this end, understanding the framework level execution of mm Wave cell systems conveys basic significance. In this paper, we examine the normal flag to-impedance in addition to commotion proportion (SINR) dissemination (geometry) execution for indoor and open air versatile stations (MSs) in mm Wave cell systems utilizing 3 GPP framework level recreations. We consider urban smaller scale (UMi) and urban full scale (UMa) situations for our assessments.