Effective location management of mobile actors in wireless sensor and actor networks

Aslam, Nauman, Phillips, William and Robertson, William (2009) Effective location management of mobile actors in wireless sensor and actor networks. Journal of Networks, 4 (1). pp. 1-8. ISSN 1796-2056

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Abstract

Recent years have witnessed an increasing availability of heterogeneous sensor networks that consist of a large number of resource constrained nodes (sensors) and a small number of powerful resource rich nodes (actors).
Such heterogeneous Wireless Sensor Actor Network (WSANs) offer improvement of sensor networks' capacity/coverage, energy conservation and network lifetime. This paper investigates the case where sensors are organized into clusters and mobile actors are used for maintaining an energy efficient topology by periodically manipulating their geographical position. We present an elegant technique that allows actor nodes to find an optimal geographical location with respect to their associated cluster heads such that the overall energy consumed is minimized.
The proposed technique includes a weighted cost function based on the residual energy levels of cluster heads that allows the mobile actor to optimally fine-tune its geographical location. We present simulation results that demonstrate a significant increase of network lifetime over
the traditional cluster based WSN deployments.

Item Type:	Article
Subjects:	G400 Computer Science G900 Others in Mathematical and Computing Sciences
Department:	Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User:	Sarah Howells
Date Deposited:	23 Apr 2012 13:42
Last Modified:	13 Oct 2019 00:25
URI:	http://nrl.northumbria.ac.uk/id/eprint/6397

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