Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks
Nodes in underwater wireless sensor networks (UWSNs) keep moving and dispersing due to force of water flow and aquatic creatures touching, and thus some isolated unknown nodes emerge. This type of isolated unknown nodes cannot directly communicate with enough beacons in their neighborhoods, which ma...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-07-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2015/682182 |
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| _version_ | 1849467545347686400 |
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| author | Linfeng Liu Jiagao Wu Zhiwen Zhu |
| author_facet | Linfeng Liu Jiagao Wu Zhiwen Zhu |
| author_sort | Linfeng Liu |
| collection | DOAJ |
| description | Nodes in underwater wireless sensor networks (UWSNs) keep moving and dispersing due to force of water flow and aquatic creatures touching, and thus some isolated unknown nodes emerge. This type of isolated unknown nodes cannot directly communicate with enough beacons in their neighborhoods, which makes localizations for them disabled or the localization error unbearable. To this end, a multihops fitting localization approach is proposed in this paper. Firstly, some intermediate nodes between beacons and unknown nodes are set as routers to construct paths via a greedy method; then, the multihop paths are approximately fitted into straight lines; finally, the positions of unknown nodes can be estimated by trilateration. The proposed algorithm is analyzed and simulated in terms of localization error and error variance, and the results are proven preferable. |
| format | Article |
| id | doaj-art-e75daf76f04a4ee3a5ee6e8b3e247ad7 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2015-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-e75daf76f04a4ee3a5ee6e8b3e247ad72025-08-20T03:26:10ZengWileyInternational Journal of Distributed Sensor Networks1550-14772015-07-011110.1155/2015/682182682182Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor NetworksLinfeng Liu0Jiagao Wu1Zhiwen Zhu2 School of Computer Science & Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China School of Computer Science & Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China School of Computer Science & Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, ChinaNodes in underwater wireless sensor networks (UWSNs) keep moving and dispersing due to force of water flow and aquatic creatures touching, and thus some isolated unknown nodes emerge. This type of isolated unknown nodes cannot directly communicate with enough beacons in their neighborhoods, which makes localizations for them disabled or the localization error unbearable. To this end, a multihops fitting localization approach is proposed in this paper. Firstly, some intermediate nodes between beacons and unknown nodes are set as routers to construct paths via a greedy method; then, the multihop paths are approximately fitted into straight lines; finally, the positions of unknown nodes can be estimated by trilateration. The proposed algorithm is analyzed and simulated in terms of localization error and error variance, and the results are proven preferable.https://doi.org/10.1155/2015/682182 |
| spellingShingle | Linfeng Liu Jiagao Wu Zhiwen Zhu Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks International Journal of Distributed Sensor Networks |
| title | Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks |
| title_full | Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks |
| title_fullStr | Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks |
| title_full_unstemmed | Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks |
| title_short | Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks |
| title_sort | multihops fitting approach for node localization in underwater wireless sensor networks |
| url | https://doi.org/10.1155/2015/682182 |
| work_keys_str_mv | AT linfengliu multihopsfittingapproachfornodelocalizationinunderwaterwirelesssensornetworks AT jiagaowu multihopsfittingapproachfornodelocalizationinunderwaterwirelesssensornetworks AT zhiwenzhu multihopsfittingapproachfornodelocalizationinunderwaterwirelesssensornetworks |