Abstract
The increasing Machine-Type Communications (MTC) devices will make the network congestion because enormous devices simultaneously perform the random access to obtain the uplink resources. The group paging mechanism may solve this issue by centralized control to disperse the devices. This paper develops an analytic model to study the operation of multi-group random access procedure. Based on the analytic model, we design an approach to implement the group paging mechanism that satisfies the success probability of random access and consumes the less completion time to finish the whole procedure. Furthermore, we compare the performance of the paging and group paging mechanism in our simulation.