An adaptive medium access control mechanism for cellular based Machine to Machine (M2M) communication

This paper discusses the realization of Adaptive Traffic Load slotted MACA in cellular based M2M communication. Based on the statistic information of the channel´s occupancy rate, the base station estimates the traffic load and calculates the RTS transmission probability and broadcast to the members. By using the ATL S-MACA we control the access of the terminals to the system for high arrival rates. Thus maintain its throughput at 70.4%. As no carry sensing module is needed, the implementation of this protocol is not very complex and only requires the continue measurement of the traffic load. ATL S-MACA protocol is qualified to be adopted in the system where no carrier sensing module is available, like the cellular based M2M modules.