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Performance of non-uniform duty-cycled ContikiMAC in wireless sensor networks

Jamil, A. and Mohamed, N. and Abdullah, J. and Audah, L. and Alias, R. (2017) Performance of non-uniform duty-cycled ContikiMAC in wireless sensor networks. International Journal of Electrical and Computer Engineering (IJECE), 7 (2). pp. 942-949. ISSN 20888708

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Wireless Sensor Network (WSN) is a promising technology in Internet of Things (IoTs).WSN can be implemented in many applications. A drawback of WSN is limited energy, where each sensor nodes are powered using batteries. Because of this, duty-cycle mechanism are introduced to ensure the sensor nodes are in the sleep mode almost of the time to reduce power consumption to prolong the network lifetime. One of the de-facto standard of duty-cycle mechanism inWSN is ContikiMAC, which is the default duty-cycle mechanism in Contiki OS. ContikiMAC ensures nodes can participate in network communication yet keep it in sleep mode for roughly 99% of the time. However, it is found that the ContikiMAC does not perform well in dynamic network conditions. In a bursty network, ContikiMAC is found to provide a poor performance, especially in term of packet delivery ratio due to congestion. In this study, we looks into a possibility of enhancing ContikiMAC by making it dynamically changes its duty-cycle rates based on the network conditions. This dynamic duty-cycle rate creates a non-uniform duty-cycle rate among the sensor nodes in the network. This work aims to investigate the effect of non-uniform duty-cycle rates on the performance on ContikiMAC. Cooja simulator is selected as the simulation tool. Three different simulation scenarios are considered depending on the Clear Channel Assessment Rate (CCR) configuration: uniform minimum CCR (min-CCR), uniform maximum CCR (max-CCR) and non-uniform mixed CCR (max-CCR). The simulation results show that the min-CCR provides the lowest performance and max-CCR provides the highest performance. The mix-CCR provides the performance in between of min-CCR and max-CCR.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 31 Oct 2019 02:38
Last Modified: 31 Oct 2019 02:38
URI: http://eprints.uthm.edu.my/id/eprint/11806
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