On the Design of MAC Protocol and Transmission Scheduling for Internet of Things

摘要

With the ubiquitous sensing enabled by wireless sensor network technologies,Internet of Things (IoT) is developed to many areas of modern day living. Theinexpensive IoT devices and platforms capable of wireless communications enablethe ability to measure, infer and understand environmental indicators, fromdelicate ecologies and natural resources to urban environments. In this paper,we firstly investigate a scalable multimode-based MAC protocol, IoT-MAC, whichconsists of a channel contention period and a data transmission period, toreduce contention of channel access due to coexist of many IoT devices.Secondly, we study a data transmission scheduling algorithm to maximise datacollection under the constraints of radio link quality and remaining energy ofthe IoT node, while ensuring a fair access to the radio channel. To study theperformance of data reception rate, packet loss rate and latency, we evaluatethe IoT-MAC and scheduling algorithm with varying data rate and differentnetwork scale.