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

TL;DR

This paper proposes a scalable MAC protocol and a data transmission scheduling algorithm for IoT networks, aiming to improve channel access efficiency, data collection, and fairness under resource constraints.

Contribution

It introduces IoT-MAC, a multimode MAC protocol, and a scheduling algorithm that optimizes data collection considering link quality and energy, enhancing IoT network performance.

Findings

IoT-MAC reduces channel contention among IoT devices.

The scheduling algorithm improves data reception rate and fairness.

Performance evaluation shows effectiveness under various network scales.

Abstract

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