search and rescue scene are at increased risk of large scale damages and networks are partitioned into disjoint segments. Self-restoring of WSNs in such a case is crucial. Present an obstacle-aware connectivity restoration strategy( OCRS)
which places mobile nodes acting as mobile data collectors( MDCs) among segments to provide intermittent communication links. During MDCs traveling
obstacles are taken into account. Construct obstacle-avoiding minimum spanning tree of segments
and optimize mobile node travel routers. Minimize the maximum moving distance and total moving distance of moving node. Effectiveness of OCRS is validated through simulation experiments.
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references
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Coverage-aware connectivity restoration in mobile sensor networks [J] . Neelofer Tamboli,Mohamed Younis. Journal of Network and Computer Applications . 2010 (4)