Mobility Investigate

Performance Evaluation and Enhancement of Surface Coverage Relay Protocol

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Executive Summary

Area coverage protocols aim at turning off redundant sensor nodes while ensuring full coverage of the area by the remaining active nodes. Connectivity of the active nodes subset must also be provided so that monitoring reports can reach the sink stations. Existing solutions hardly address these two issues as a unified one and very few are robust to non ideal physical conditions. In this paper, the authors propose a deep analysis and some enhancements of a localized algorithm for area coverage, based on Surface Coverage Relays (SCR) and able to build connected active nodes sets that fully cover the area. They first enhanced the critical phase of their protocol (the relay selection) and show that the number of active nodes can be drastically reduced.

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