Title: MPF-LEACH: modified probability function for cluster head election in LEACH protocol

Authors: Khalid M.O. Nahar; Ra'ed M. Al-Khatib; Malek Barhoush; Alfian Abdul Halin

Addresses: Department of Computer Sciences, Faculty of Information Technology and Computer Sciences, Yarmouk University, Irbid 21163, Jordan ' Department of Computer Sciences, Faculty of Information Technology and Computer Sciences, Yarmouk University, Irbid 21163, Jordan ' Department of Computer Sciences, Faculty of Information Technology and Computer Sciences, Yarmouk University, Irbid 21163, Jordan ' Multimedia Department, Faculty of Computer Science and Information Technology, Universiti Putra Malaysia, Bintulu, Sarawak, Malaysia

Abstract: In this research, we enhance the LEACH protocol by updating Cluster Head (CH) election probability function (thresholds). More probability was given to an out-of-service CH to be elected again. The idea is to get benefit from CH residual energy in order to extend the network lifetime. A new threshold was introduced which guarantees a non-zero probability value of a CH. We proposed a newly developed research technique to enhance the original LEACH protocol. The enhancement focuses on extending a WSN's lifetime, and increasing its throughput. It is achieved by giving more probability to re-elect the expired CH that has been removed from CHs list because of its insufficient residual energy. Several experiments were conducted to evaluate the efficiency of our proposed MPF-LEACH approach. From the experimental results, a remarkable enhancement in the network lifetime and throughput is achieved. We have improved the election probability threshold for the original LEACH protocol by benefiting from the CH residual energy. As a result, the whole network lifetime was increased due to the extra chance that is given to a CH to be elected again.

Keywords: routing protocol; WSNs; wireless sensors networks; energy aware; LEACH protocol; cluster head; threshold election probability.

DOI: 10.1504/IJCAT.2019.100295

International Journal of Computer Applications in Technology, 2019 Vol.60 No.3, pp.267 - 280

Received: 29 May 2018
Accepted: 04 Jul 2018
Published online: 25 Jun 2019 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article