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In-network data aggregation is an effective technique to reduce communication cost in wireless sensor networks. Recent works have focused on two issues individually: dynamic aggregation to handle irregular traffic of events and robust aggregation to tolerate packet losses. However, how to achieve both the objectives simultaneously is still not touched. In this paper, we propose a cross-layer approach...
In most of the applications of wireless sensor networks(WSN), covering the area of interest and delivering the sensed information to the sink are two fundamental functions. Extensive research associated with these two issues, such as energy efficient coverage and delay-constraint routing, can be found in the literature. However, few works combine these two issues together. Considering the fact that...
Nowadays research and applications of wireless sensor network have attracted peoplepsilas attention. Since sensor nodes in WSN are resource-constrained, the security solutions for WSN become difficult. In this paper, we propose to use combined public key technique in wireless sensor network. A new key management scheme, a key agreement and mutual authentication protocol based on CPK for WSN are given,...
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