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OCTOPUS: An On-Demand Communication Topology Updating Strategy for Mobile Sensor Networks

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3 Author(s)
Hatime, H. ; Dept. of Electr. Eng. & Comput. Sci., Wichita State Univ., Wichita, KS, USA ; Namuduri, K. ; Watkins, J.M.

Mobile sensor networks are characterized by dynamic changes in communication links and network topology caused mainly due to node mobility. In such networks, it is a challenge to build a communication system that lasts longer and requires less reconfiguration and less communication overhead. In this paper, we propose an on-demand topology reconfiguration approach for mobile sensor networks aimed at enhancing the connectivity and performance. The proposed strategy groups nodes, elects cluster-heads, and, finally, selects gateways for inter-cluster communication. Neural networks are used to form clusters. Cluster-heads are elected based on the concept of minimum dominant set and the gateways are selected based on a willingness function. We demonstrate through simulations that the proposed strategy results in a well connected network.

Published in:

Sensors Journal, IEEE  (Volume:11 ,  Issue: 4 )

Date of Publication:

April 2011

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