Sau Yee Wong

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— Localization schemes using hop-counts to reference nodes of known positions have been proposed to localize nodes in a sensor network. However, these schemes usually work well only when the networks have uniform and dense node distribution. In view of this, a novel Density-aware Hop-count Localization (DHL) algorithm is described here to improve the(More)
— Localization of wireless micro-sensors which are non-uniformly scattered over a region is a challenging problem. Solutions relying on simple inter-node ranging and then summing up ranges between a node and reference nodes do not necessarily provide reliable position estimation. Besides, in multihop localization, error in distance estimation tends to(More)
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