INVESTIGATION OF CELLULAR NETWORK RESOURCE DIVISION PROCEDURES FOR THE JOINT SERVICING OF REALTIME MULTISERVICE TRAFFIC AND ELASTIC IOT TRAFFIC
Mukhtar Andrabi Umer, S. N. Stepanov
Abstract
Immense growth in the volumes and multiplicity of data to be collected in future Internet of Things (IoT) applications is one of the crucial challenges for the networking organiza tions as they develop from 4G+ to true 5G systems. Particularly bulk of this traffic includes complex, unstruc tured and varied data (Big Data) evolve from smart net working ecosystems (LTE devices, NB IoT devices). Although 5G offers many low power wide area technologies (Lora WAN, GSM and NB IoT etc.), principally NB IoT seems very promising addressing the problem because of its certain characteristics like high fault tolerance, delay toler ance, higher coverage area etc. However, due to the limited bandwidth (180 kHz) availability one of the challenges is how to efficiently use these resources to support and handle massive number of growing IoT devices, also resource man agement and allocation methodology between LTE and NB IoT traffic flows. In this context, several key issues for IoT communications in 5G networks should be addressed to satisfy quality of service (QoS) provisioning. In this paper, we propose two scheduling schemes for sharing radio resources between LTE and NB IoT. The proposed tech niques provide scenarios that aims to offer a trade off between the two types of traffics by guaranteeing the net work performance and avoiding unproductive utilization of available resources.