Mahani, A., Kargar, A., Kavian, Y. S. and Rashvand, H. F. (2012) Non-uniform distribution of multi-hop sensor networks : performance improvement and energy hole mitigation. IET Wireless Sensor Systems, Volume 2 (Number 4). pp. 302-308. doi:10.1049/iet-wss.2012.0032

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Abstract

The authors consider that packet forwarding strategies drastically affect the traffic patterns in multi-hop wireless networks such as wireless sensor networks (WSN). The converge-cast nature of the WSN traffic pattern is an imbalanced pattern, which leads to many issues including: 1- energy holes 2- high delay 3- traffic blockage. In this study, the effects of the node's density on the total delay, throughput and consumed energy of a WSN is considered. Here the authors demonstrate that under a non-uniform distribution method the WSN encounters much lesser energy holes and prolongs the network life cycle. So Zipf distribution is used and the performance metrics and lifetime of a WSN for uniform and Zipf distribution are compared. The simulation results show that a WSN with Zipf distribution works more energy efficient than a uniform density network. Also the Zipf distribution with different characterising exponent reports a trade-off between network lifetime and end-to-end delay.

Item Type:	Journal Article
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	IET Wireless Sensor Systems
Publisher:	IEEE Computer Society
ISSN:	2043-6386
Official Date:	2012
Dates:	Date Event 2012 Published
Volume:	Volume 2
Number:	Number 4
Page Range:	pp. 302-308
DOI:	10.1049/iet-wss.2012.0032
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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