Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21222
Title: An ant colony optimization approach for maximizing the lifetime of heterogeneous wireless sensor networks
Authors: Lin, Y
Zhang, J
Chung, HSH
Ip, WH 
Li, Y
Shi, YH
Keywords: Ant colony optimization (ACO)
Connectivity
Coverage
Network lifetime
Wireless sensor networks (WSNs)
Issue Date: 2012
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on systems, man, and cybernetics. Part C, Applications and reviews, 2012, v. 42, no. 3, 5756253, p. 408-420 How to cite?
Journal: IEEE transactions on systems, man, and cybernetics. Part C, Applications and reviews 
Abstract: Maximizing the lifetime of wireless sensor networks (WSNs) is a challenging problem. Although some methods exist to address the problem in homogeneous WSNs, research on this problem in heterogeneous WSNs have progressed at a slow pace. Inspired by the promising performance of ant colony optimization (ACO) to solve combinatorial problems, this paper proposes an ACO-based approach that can maximize the lifetime of heterogeneous WSNs. The methodology is based on finding the maximum number of disjoint connected covers that satisfy both sensing coverage and network connectivity. A construction graph is designed with each vertex denoting the assignment of a device in a subset. Based on pheromone and heuristic information, the ants seek an optimal path on the construction graph to maximize the number of connected covers. The pheromone serves as a metaphor for the search experiences in building connected covers. The heuristic information is used to reflect the desirability of device assignments. A local search procedure is designed to further improve the search efficiency. The proposed approach has been applied to a variety of heterogeneous WSNs. The results show that the approach is effective and efficient in finding high-quality solutions for maximizing the lifetime of heterogeneous WSNs.
URI: http://hdl.handle.net/10397/21222
ISSN: 1094-6977
DOI: 10.1109/TSMCC.2011.2129570
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