From the March 2012 Issue...
Coverage and Connectivity in Duty-Cycled Wireless Sensor Networks for Event Monitoring
By Shibo He, Jiming Chen, and Youxian Sun
In duty-cycled wireless sensor networks (WSNs) for stochastic event monitoring, existing efforts are mainly concentrated on energy-efficient scheduling of sensor nodes to guarantee the coverage performance, ignoring another crucial issue of connectivity. The connectivity problem is extremely challenging in the duty-cycled WSNs due to the fact that the link connections between nodes are transient thus unstable. In this paper, we propose a new kind of network, partitioned synchronous network, to jointly address the coverage and connectivity problem...
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