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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rani, V.S. Raghavan, S.V. |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of CSE, Indian Inst. of Technol. Madras, Chennai (Rani, V.S.; Raghavan, S.V.) |
| Abstract | The need for location aware applications is increasing with the popularity of ubiquitous computing. Localization which is the process of estimating the location of a node is an important building block in these location aware applications. In a typical localization technique, beacons whose locations are known a priori, acts as reference in estimating the location of user nodes. It has been observed that the placement and density of these beacons have strong impact on the accuracy of localization. The intuitive approaches - uniform and dense beacon placement will not suffice in practical situations due to the presence of nonuniform obstructions and self interference of beacons which results in non-uniform signal propagation error. The effect of beacon density on localization error is characterized as decrease in error with increase in beacon density up to a point termed as threshold density and there after the effect is minimal. The number of beacons that will be in range at this threshold density is threshold degree $mu_{thresh}.$ To address the problems of uniform and dense placement, we will present a novel beacon placement algorithm in this paper which uses greedy approach, to achieve threshold degree condition at all points and observed an improvement in accuracy over uniform placement. |
| Sponsorship | IEEE |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 500848 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424428281 |
| DOI | 10.1109/WD.2008.4812879 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-11-24 |
| Publisher Place | United Arab Emirates |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Pervasive computing Wireless communication component styling insert (key words) Indoor environments Interference Auditory system Ubiquitous computing style Application software formatting |
| Content Type | Text |
| Resource Type | Article |
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