Model for analysis of Machine-Type Communications

In this paper we propose a new model of random multiple access for Machine-Type Communication which is based on last generation wireless networks. The proposed model takes into account that preamble detection probability decreases with growth of transmitting devices number due to SINR degradation even if they are transmitting in orthogonal channels. For analysis of this model the technique of diffusion approximation is used. This technique allows to analyze such characteristics of the system as an average number of active devices.