| Publisher | Association for Computing Machinery | ||
|---|---|---|---|
| Format | 241.4KB PDF | Date added | 19 Sep 2003 |
| Topics | Monitoring Systems, Scalability, Mobile - Wireless Communications | ||
| Downloads | 79 | ||
Wireless Sensor Networks have been proposed for a multitude of location-dependent applications. For such systems, the cost and limitations of the hardware on sensing nodes prevent the use of range-based localization schemes that depend on absolute point-to-point distance estimates. Because coarse accuracy is sufficient for most sensor network applications, solutions in range-free localization are being pursued as a cost-effective alternative to more expensive range-based approaches. This paper presents APIT, a novel localization algorithm that is range-free. The paper shows that the APIT scheme performs best when an irregular radio pattern and random node placement are considered, and low communication overhead is desired.
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