Self-adaptive persistent contention scheme for scheduling based machine type communications in LTE system

Machine Type Communication (MTC), which allows different devices to communicate without the needs of human to machine interactions, has been developed in recent years. However, MTC possibly resulting in an unexpectedly high collision rate is different from contemporary mobile communication service when it involves a very large number of communication terminals with little traffic requirement. As a solution, we propose a self-adaptive persistent contention scheme to schedule MTC devices in a periodical reporting manner. Moreover, the proposed scheme not only solves the congestion problem but also achieve significant uplink bandwidth utilization improvement as well as backward compatibility for the existing wireless communication framework. Simulation results demonstrate that the proposed scheme significantly promotes the transmission efficiency.