Adaptive Backoff enabled WUR on non-cellular local IoT for extreme low power operation

Abstract

A large number of edge devices employed for Internet of Things (IoT) technology require low-power operation to extend operating time. However, contention-based networks may cause channel collisions and throughput degradation as the number of devices increases. Furthermore, in a competition-based network in which different IoT devices coexist, one common channel access algorithm is required for effective spectrum access. Therefore, we propose an adaptive backoff enabled MAC operation of a common channel access algorithm for edge devices with different MAC protocols in a local IoT wireless environment to reduce power consumption and channel access latency. The discrete-event simulation results demonstrate that the proposed channel access scheme outperforms the existing EDCA channel access schemes in general MAC under different scenarios such as traffic load and packet arrival rate.