Node Discovery and Replacement Using Mobile RobotReport as inadecuate

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1 FUN - Self-organizing Future Ubiquitous Network Inria Lille - Nord Europe

Abstract : A critical problem of wireless sensor networks is the network lifetime, due to the device-s limited battery lifetime. The nodes are randomly deployed in the field and the system has no previous knowledge of their position. To tackle this problem we use a mobile robot, that discovers the nodes around it and replaces the active nodes, whose energy is drained, by fully charged inactive nodes. In this paper we propose two localized algorithms, that can run on the robot and that decide, which nodes to replace. We simulate our algorithms and our findings show that all nodes that fail are replaced in a short period of time.

Author: Kalypso Magklara - Dimitrios Zorbas - Tahiry Razafindralambo -



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