Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime

The improvement of sensor networks’ lifetime has been a major research challenge in recent years. This is because sensor nodes are battery powered and may be difficult to replace when deployed. Low Energy Adaptive Clustering Hierarchical (LEACH) routing protocol was proposed to prolong sensor nodes’...

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Main Author:	Ahmed, Amodu Oluwatosin
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Sensor networks Computer science Wireless LANs
Online Access:	http://psasir.upm.edu.my/id/eprint/113993/1/113993.pdf
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id	my-upm-ir.113993
record_format	uketd_dc
spelling	my-upm-ir.1139932024-12-05T01:20:42Z Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime 2016 Ahmed, Amodu Oluwatosin The improvement of sensor networks’ lifetime has been a major research challenge in recent years. This is because sensor nodes are battery powered and may be difficult to replace when deployed. Low Energy Adaptive Clustering Hierarchical (LEACH) routing protocol was proposed to prolong sensor nodes’ lifetime by dividing the network into clusters. In each cluster, a cluster head (CH) node receives and aggregates data from other nodes. However, CH nodes in LEACH are randomly elected which leads to a rapid loss of network energy. This energy loss occurs when the CH has a low energy level or when it is far from the BS. LEACH with Two Level Cluster Head (LEACH-TLCH) protocol deploys a secondary cluster head (2CH) to relieve the cluster head burden in these circumstances. However, in LEACH-TLCH the optimal distance of CH to BS, and the choicest CH energy level for the 2CH, to be deployed for achieving an optimal network lifetime was not deployed. In this thesis, we have improved on LEACH-TLCH by investigating the conditions set to deploy the 2CH for an optimal network lifetime. We also conduct experiments to indicate how the 2CH impacts on the network at different CH energy levels and (or) CH distance to BS. Our improvement on LEACH-TLCH in this thesis is referred to as Factor-based LEACH (FLEACH) protocol. Investigations in FLEACH shows that as CH gets farther from the BS, the use of a 2CH extends the network lifetime. Similarly, an increased lifetime also results as the CH energy decreases while the 2CH is deployed. The best case considered in FLEACH shows an improvement of over 670% in network lifetime as compared to LEACH-TLCH and improves LEACH by over 700%. Sensor networks Computer science Wireless LANs 2016 Thesis http://psasir.upm.edu.my/id/eprint/113993/ http://psasir.upm.edu.my/id/eprint/113993/1/113993.pdf text en public http://ethesis.upm.edu.my/id/eprint/18050 masters Universiti Putra Malaysia Sensor networks Computer science Wireless LANs Raja Mahmood, Raja Azlina
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Raja Mahmood, Raja Azlina
topic	Sensor networks Computer science Wireless LANs
spellingShingle	Sensor networks Computer science Wireless LANs Ahmed, Amodu Oluwatosin Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime
description	The improvement of sensor networks’ lifetime has been a major research challenge in recent years. This is because sensor nodes are battery powered and may be difficult to replace when deployed. Low Energy Adaptive Clustering Hierarchical (LEACH) routing protocol was proposed to prolong sensor nodes’ lifetime by dividing the network into clusters. In each cluster, a cluster head (CH) node receives and aggregates data from other nodes. However, CH nodes in LEACH are randomly elected which leads to a rapid loss of network energy. This energy loss occurs when the CH has a low energy level or when it is far from the BS. LEACH with Two Level Cluster Head (LEACH-TLCH) protocol deploys a secondary cluster head (2CH) to relieve the cluster head burden in these circumstances. However, in LEACH-TLCH the optimal distance of CH to BS, and the choicest CH energy level for the 2CH, to be deployed for achieving an optimal network lifetime was not deployed. In this thesis, we have improved on LEACH-TLCH by investigating the conditions set to deploy the 2CH for an optimal network lifetime. We also conduct experiments to indicate how the 2CH impacts on the network at different CH energy levels and (or) CH distance to BS. Our improvement on LEACH-TLCH in this thesis is referred to as Factor-based LEACH (FLEACH) protocol. Investigations in FLEACH shows that as CH gets farther from the BS, the use of a 2CH extends the network lifetime. Similarly, an increased lifetime also results as the CH energy decreases while the 2CH is deployed. The best case considered in FLEACH shows an improvement of over 670% in network lifetime as compared to LEACH-TLCH and improves LEACH by over 700%.
format	Thesis
qualification_level	Master's degree
author	Ahmed, Amodu Oluwatosin
author_facet	Ahmed, Amodu Oluwatosin
author_sort	Ahmed, Amodu Oluwatosin
title	Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime
title_short	Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime
title_full	Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime
title_fullStr	Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime
title_full_unstemmed	Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime
title_sort	factor-based leach (fleach) protocol for extending wireless sensor networks' lifetime
granting_institution	Universiti Putra Malaysia
publishDate	2016
url	http://psasir.upm.edu.my/id/eprint/113993/1/113993.pdf
_version_	1818586177962246144

Factor-based LEACH (FLEACH) protocol for extending Wireless Sensor Networks' lifetime

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