Coexistence of delay-sensitive MTC/HTC traffic in large scale networks

摘要: The support for mission critical machine-type-communication (cMTC) services is indispensable the 5th generation (5G) mobile communication systems. As cMTC and (part of) conventional human-type-communication (HTC) services are broadband delay-sensitive services, how to ensure their coexistence a new challenging problem. This paper investigates problem of service-level resource allocation, which decides HTC traffic share limited amount radio resource. Considering large-scale network, we put forth system model that integrates queuing models stochastic geometric to characterize the delay performance in self-interfering scenarios. A service-level resource allocation scheme called load division proposed. delay and throughput derived under different resource schemes priority scheduling policies. We show that compared with baseline frequency division, the proposed can significantly improve delay performance service, at cost slightly degraded MTC and HTC service capacities.