A coverage-aware clustering protocol for wireless sensor networks

In energy-limited wireless sensor networks, network clustering and sensor scheduling are two efficient techniques for minimizing node energy consumption and maximizing network coverage lifetime. When integrating the two techniques, the challenges include how to decide the most energy-efficient clust...

Full description

Saved in:
Bibliographic Details
Main Authors: Wang, Bang, Lim, Hock Beng, Ma, Di
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/99718
http://hdl.handle.net/10220/13724
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
Description
Summary:In energy-limited wireless sensor networks, network clustering and sensor scheduling are two efficient techniques for minimizing node energy consumption and maximizing network coverage lifetime. When integrating the two techniques, the challenges include how to decide the most energy-efficient cluster size and how to select cluster heads and active nodes. In this paper, we provide a computation method for the optimal cluster size to minimize the average energy consumption rate per unit area. In the proposed coverage-aware clustering protocol, we define a cost metric that favors those nodes being more energy-redundantly covered as better candidates for cluster heads and select active nodes in a way that tries to emulate the most efficient tessellation for area coverage. Our simulation results validate our computation and show the significant improvement of the network coverage lifetime.