Mesh-Based Sensor Relocation for Coverage Maintenance in Mobile Sensor Networks
نویسندگان
چکیده
Sensor relocation protocols can be employed as a fault-tolerance approach to reduce or complement coverage loss caused by node failures. In this paper, we introduce a novel localized structure, information mesh, for publishing and retrieving distance-sensitive data like location information. Based on the concept of information mesh, we then propose a Meshbased Sensor Relocation Protocol (MSRP) for mobile sensor networks. The proposed protocol maintains a sensor network’s overall sensing coverage by replacing failed sensors with nearby redundant ones using minimized time delay and balanced energy consumption. We show that MSRP is superior to the existing relocation protocols due to its localized message transmissions, optimal (constant) per node storage load, and its guaranteed nearby replacement node discovery and node replacing.
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