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In applications of wireless sensor networks (WSNs), sequential distributed detection using level-triggered sampling (LTS) is a powerful scheme, whose advantages include short average decision delay and enabling asynchronous low-rate communication in network. In existing works, asymptotic optimality properties are analyzed only in terms of average decision delay, while in this paper we consider the...
In geographic routing, data packet is forwarded hop-by-hop, where the next-hop relay is selected locally. The node holding the packet selects the next-hop relay based on the locations of itself, its one-hop neighbors, and the destination. The appeal of geographic routing lies in the fact that it can reduce the cost of route discovery and the burden of maintaining large-scale routing tables. However,...
The limited battery power characteristic limits the utilization time of wireless devices and networks. Thus, an energy-efficient routing protocol is critical to the performance of Wireless Sensor Networks (WSNs), especially to the lifetime of network. Some routing protocols have been proposed in previous work which mainly concentrated on the efficient use of energy. This paper proposes a novel energy-efficient...
In this paper, we propose an energy and storage efficient directed diffusion (ESEDD) scheme for wireless sensor networks, where the interest-associated nodes stores only neighbor nodes in the gradient direction to the sink, and when transmitting the data only the nodes which have the most energy will be chosen for next-hop forwarding. The simulation results have shown that the proposed scheme is more...
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