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| Titel: |
Cosine Theorem-based DV-Hop Localization Algorithm in Wireless Sensor Networks |
| Auteur: |
Haibo Wu Musheng Deng Liaoliang Xiao Wei Wei Ang Gao |
| Verschenen in: |
Information technology journal |
| Paginering: | Jaargang 10 (2011) nr. 2 pagina's 239-245 |
| Jaar: |
2011 |
| Inhoud: |
Localization is significant for various applications in Wireless Sensor Networks. It is found that the estimated hop-distance will affect localization result. In this study, we propose a Cosine Theorem-based DV-hop localization algorithm (CTDV-hop) to improve localization precision. After estimating the average hop-distance by the traditional DV-hop technique, we select the middle node between every two anchor-pairs in the transmission route one by one. Then the estimated hop-distance is adjusted by the angle between the anchor-pairs to that selected middle node. We hence obtain the improved localization results and can accurately locate even the distribution of nodes is non-uniform. The simulation results illustrate that the CTDV-hop algorithm effectively improves the localization precision without extra energy consumption in networks. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 11 van 25 gevonden artikelen
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