Phi-Le Nguyen

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Routing holes in wireless sensor networks (WSN) do occur due to several reasons, including cases caused by natural obstacles or disaster suffered areas. Computing the exact boundary of a hole is possible [5], but can be impractical with large holes. In this paper, we consider the problem of how to approximate a hole by a simplistic shape, covering polygon(More)
Holes in sensor network are regions without operating nodes which may occur due to several reasons, including cases caused by natural obstacles or disaster suffered areas. Determining the location and shape of holes can help to monitor these disaster events (such as volcano, tsunami, etc.) or help to make smart, early routing decisions for circumventing a(More)
A critical issue in designing efficient routing algorithms for wireless sensor networks (WSN) is dealing with holes which do occur due to several reasons, including cases caused by natural obstacles or disaster suffered areas. Traditional solutions utilize perimeter routing techniques that however lead to traffic concentration on the nodes on the hole(More)
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