OCTOPUS: an on-demand communication topology updating strategy for mobile sensor networks
Hatime, H.; Namuduri, K.; Watkins, J.M. "OCTOPUS: An On-Demand Communication Topology Updating Strategy for Mobile Sensor Networks," Sensors Journal, IEEE , vol.11, no.4, pp.1004-1012, April 2011 doi: 10.1109/JSEN.2010.2057420
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.