WLAN Aware Cognitive Medium Access Control Protocol for IoT Applications

Future Internet

Mohammad Zubair Khan¹  Ali Kashif Bashir²  Asfund Ausaf³  Muhammad Awais Javed³ 

[1] Department of Computer Science, College of Computer Science and Engineering, Taibah University Madinah, Madina 42353, Saudi Arabia;Department of Computing and Mathematics, Manchester Metropolitan University, Manchester M15 6BH, UK;Department of Electrical and Computer Engineering, COMSATS University Islamabad, Islamabad 45550, Pakistan;

关键词: wireless sensor networks;    medium access control;    ieee 802.15.4;    ieee 802.11;   

DOI  :  10.3390/fi12010011

来源: DOAJ

【 摘 要 】

Internet of Things (IoT)-based devices consist of wireless sensor nodes that are battery-powered; thus, energy efficiency is a major issue. IEEE 802.15.4-compliant IoT devices operate in the unlicensed Industrial, Scientific, and Medical (ISM) band of 2.4 GHz and are subject to interference caused by high-powered IEEE 802.11-compliant Wireless Local Area Network (WLAN) users. This interference causes frequent packet drop and energy loss for IoT users. In this work, we propose a WLAN Aware Cognitive Medium Access Control (WAC-MAC) protocol for IoT users that uses techniques, such as energy detection based sensing, adaptive wake-up scheduling, and adaptive backoff, to reduce interference with the WSN and improve network lifetime of the IoT users. Results show that the proposed WAC-MAC achieves a higher packet reception rate and reduces the energy consumption of IoT nodes.

【 授权许可】

Unknown