Research on uplink scheduling algorithm of massive M2M and H2H services in LTE

There will be massive M2M terminals to transmit data via LTE uplink in the future. M2M will inevitably influence the QoS of H2H. However, the existing LTE uplink scheduling algorithms can't be applied to M2M services. It is necessary and urgent to optimize the LTE uplink scheduling algorithms. In this paper, we propose a LTE uplink scheduling algorithm named M2MA-SA under massive M2M and H2H arrivals. M2MA-SA differentiates between M2M and H2H services. For massive M2M services, a compound 2-phase scheduling mechanism is presented, which combines maximum-utility scheduling with round robin scheduling. For H2H services, an algorithm named Iternative Maximum Expansion (IME) is used which satisfied the contiguity constraint of LTE uplink resource allocation. The simulation results show that M2MA-SA not only guarantees the QoS of H2H communication, but also improves the system throughput and the capacity of H2H users.