Performance analysis of energy consumption in machine-type communication

Many challenges for efficiently supporting MTC (Machine-Type Communications) in LTE network have been investigated. In particular, access control schemes have been investigated to protect the system from excessive connectivity of MTC devices. Nonetheless, as the number of devices with data to send increases, it is inevitable that the energy consumed by the preamble collision and retransmission increases. In this paper, we analyze the impact of the preamble collision and retransmission on the energy consumption.