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In this paper we focus on wireless sensor networks deployed to cover some given Points of Interest (PoIs), achieve connectivity with the sink and be robust against link and node failures. The Relay Node Placement problem (RNP) consists in minimizing the number of relays needed and the maximum length of the paths connecting each PoI with the sink. We propose a solution that determines the positions...
Additional relay nodes (RNs) can be deployed within a partitioned Wireless Sensor Network (WSN) to restore connectivity among the partitions. In the case of lack of sufficient RNs to link all the partitions, some of the RNs can act as mobile data collectors (MDCs) to visit partitions for providing intermittent connection for the nodes. Determining the number of MDCs and stationary RNs is a challenge...
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