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In mobile wireless sensor networks (MWSN) with a sparse node population, an end-to-end path may be broken frequently or may not exist at any time due to nodes' mobility, which makes it impossible to apply the existing shortest-path routing protocols based on static topology for MWSN. An RSSI-based opportunistic routing protocol for MWSN, named OR-RSSI, is proposed in this paper. In the proposed protocol,...