Volume 9, Issue 5 (May 2022), Pages: 127-134

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 Original Research Paper

 Title: An enhanced adaptive duty cycle scheme for energy efficiency and QoS awareness in wireless sensor networks

 Author(s): Ahmad Aiman Shallahuddin, Mohd Fadzil Abdul Kadir *, Mohamad Afendee Mohamed, Ahmad Faisal Amri Abidin, Nazirah Abd Hamid

 Affiliation(s):

 Faculty Informatics and Computing, Universiti Sultan Zainal Abidin, Kuala Terengganu, Malaysia

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 * Corresponding Author. 

  Corresponding author's ORCID profile: https://orcid.org/0000-0002-3647-5134

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2022.05.016

 Abstract:

A Wireless Sensor Network (WSN) is a small device that has batteries and radios to connect to the internet. The main problem with WSNs is a limited energy source, energy studies needed to ensure that these sensor nodes can last longer, especially since a lot of energy is wasted during idle listening, overhearing, and data collision that occurs at the medium access control (MAC) layer. The common mechanism used for saving energy in WSN, specifically at the MAC layer is the duty cycle schedule. Duty cycling coordinates sleep-wake time sensor nodes to maximize network lifetime while achieving specific application goals such as high throughput or low latency. Duty cycling of every node should be adjusted separately at any runtime depending on the network conditions to achieve desired delay guarantees and energy efficiency. Recently, a few adaptive duty cycle schemes were introduced, these schemes have reduced energy consumption by some degree, this leaves an open end to the degradation of the quality of service. In this study, adaptive duty cycles enhanced with a priority queue where packet size is the parameter to adjust the duty cycle in order to get efficient energy consumption. A variant of packet size tested to ensure optimum quality of services (QoS). These factors determine the duration of a node’s listen period for various packet transmission scenarios and requirements. As the result, the proposed Enhanced S-MAC (ESMAC) shows an improvement in the energy consumption and QoS compared to the default MAC protocol and S-MAC protocol. The success of this project will contribute to the performance improvement of sensing devices. 

 © 2022 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Adaptive duty cycle, Energy efficient, QoS, Packet priority, Priority queue, Wireless sensor network

 Article History: Received 20 September 2021, Received in revised form 22 January 2022, Accepted 8 March 2022

 Acknowledgment 

We thank the Ministry of Higher Education Malaysia and the Center of Research and Innovation (CRIM) at the University of Sultan Zainal Abidin (UniSZA) for providing equipment and supporting this project.

 Compliance with ethical standards

 Conflict of interest: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

 Citation:

 Shallahuddin AA, Kadir MFA, and Mohamed MA et al. (2022). An enhanced adaptive duty cycle scheme for energy efficiency and QoS awareness in wireless sensor networks. International Journal of Advanced and Applied Sciences, 9(5): 127-134

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 Figures

 Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 

 Tables

 Table 1 Table 2 Table 3 

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