| Publisher | Association for Computing Machinery | ||
|---|---|---|---|
| Format | 290.2KB PDF | Date added | 25 May 2006 |
| Topics | Monitoring Systems, Mobile - Wireless Communications | ||
| Downloads | 14 | ||
Location knowledge of nodes in a network is essential for many tasks such as routing, cooperative sensing, or service delivery in ad hoc, mobile, or sensor networks. This paper introduces a novel iterative method Iterative Least-Squares (ILS) for node localization starting with a relatively small number of anchor nodes in a large network. At each iteration, nodes are localized using a least-squares based algorithm. The computation is lightweight, fast, and any-time. To prevent error from propagating and accumulating during the iteration, the error control mechanism of the algorithm uses an error registry to select nodes that participate in the localization, based on their relative contribution to the localization accuracy.
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