Performance optimisation of multichannel MAC in large-scale wireless sensor network. (6th January 2022)

• Record Type: Journal Article
• Authors: Dong, Chuchu; Feng, Shengzhong; Yu, Fengqi
• Is Part Of: International journal of sensor networks. Volume 38:Number 1(2022)
• Page Start: 12
• Page End: 24
• Publication Date: 2022-01-06
• Subjects: WSN -- wireless sensor network -- MAC protocol -- multichannelMAC -- channel assignment -- energy efficiency -- wireless collision -- load balance; Sensor networks -- Periodicals; 681.2
• Languages: English
• ISSNs: 1748-1279

Abstract

Efficient multichannel medium access control (MAC) protocols can significantly prolong the lifetime of sensor networks. In this paper, an energy-efficient prediction-based multichannel MAC protocol (PM-MAC) is proposed for large-scale wireless sensor networks (WSNs). PM-MAC minimises sensor node's idle listening time without introducing any multihop time synchronisation and channel assignment overhead by introducing a prediction mechanism of the target node'swakeup channel and wakeup time. PM-MAC introduces a dynamic channel allocation to achieve precise and quick resynchronisation when a prediction error occurs. In addition, inPM-MAC, the load can be well balanced on all channels. Finally, its prediction-based retransmission mechanism can achieve more energy efficiency in resolving severe wireless collisions caused by concurrent traffic in large-scale sensor network. The PM-MAC not only reduces multihop packet latency and energy consumption, but also increases network capacity and throughput. Experimental results confirm the outstanding performance of PM-MAC in all testbeds.