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In many applications in wireless sensor network source nodes generate and send periodic traffic to the sink through a number of forwarder nodes. In such a multihop network forwarders have forwarding duties but should, on the other hand, to spend as much time as possible in an energy-saving deep-sleep mode. In this work we explore decentralized approach to organize the wake-up process of the forwarders...
In this paper we consider the problem of how several observer nodes can cooperatively make reliable judgements about one mobile node. These judgments shall not only cover the mere presence or absence of the mobile node, but also include coarse indications about the distance of the mobile node to the observers. To this end, we present and investigate in this paper a scheme for distance classification...
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