Utilizing priority-based packet scheduling based on preemptive priority scheduling in wireless sensor networks

Lethabo Mathebula*

School Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban, South Africa

Abstract

In this paper, each node has three levels of priority queues. Real-time packets are placed into the highest-priority queue and can preempt data packets in other queues. Non-real-time packets are placed into two other queues based on a certain threshold of their estimated processing time. Leaf nodes have two queues for real-time and non-real-time data packets since they do not receive data from other nodes and thus, reduce end-to-end delay. The priority packet scheduling scheme outperforms conventional schemes in terms of average data waiting time and end-to-end delay and also it reduces sensor energy consumption.

Keywords

Wireless sensor networks, FCFS, Priority packet scheduling, Pre-emptive, Non-preemptive, Real-time packets, Non-real-time packets

Digital Object Identifier (DOI)

https://doi.org/10.21833/AEEE.2020.04.001

Article history

Received 17 September 2019, Received in revised form 10 January 2020, Accepted 20 January 2020

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How to cite

Lethabo Mathebula (2020). Utilizing priority-based packet scheduling based on preemptive priority scheduling in wireless sensor networks. Annals of Electrical and Electronic Engineering, 3(4): 1-6

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