Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks
In wireless sensor networks (WSN), the geometric distribution of anchor nodes has a significant influence on the positioning accuracy. Geometric dilution of precision (GDOP) can be used to measure the positioning precision of the localization system. In order to select the optimal node combination,...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-06-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2014/404812 |
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| _version_ | 1832553108957298688 |
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| author | Yunzhou Zhang Dongfei Wei Wenyan Fu Bing Yang |
| author_facet | Yunzhou Zhang Dongfei Wei Wenyan Fu Bing Yang |
| author_sort | Yunzhou Zhang |
| collection | DOAJ |
| description | In wireless sensor networks (WSN), the geometric distribution of anchor nodes has a significant influence on the positioning accuracy. Geometric dilution of precision (GDOP) can be used to measure the positioning precision of the localization system. In order to select the optimal node combination, traditional algorithms based on GDOP need to spend much time on calculating every possible combination of nodes. This paper proposes GDOP assisted nodes selection (GANS) algorithm to calculate GDOP value of the current geometric distribution. Sensor node's contribution to the overall GDOP value is adopted as the evaluation criteria. The nodes whose contribution value is greater than the threshold will be selected. The anchor nodes subset, which participates in the positioning, will be real-time determined. Simulation results show that the GANS algorithm can effectively reduce the energy consumption of the system, while the positioning accuracy has no obvious loss. Meanwhile, computational complexity is also obviously decreased. |
| format | Article |
| id | doaj-art-2df98070269a4e878b7b0eb5fd7a5edb |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2014-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-2df98070269a4e878b7b0eb5fd7a5edb2025-02-03T05:55:25ZengWileyInternational Journal of Distributed Sensor Networks1550-14772014-06-011010.1155/2014/404812404812Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor NetworksYunzhou ZhangDongfei WeiWenyan FuBing YangIn wireless sensor networks (WSN), the geometric distribution of anchor nodes has a significant influence on the positioning accuracy. Geometric dilution of precision (GDOP) can be used to measure the positioning precision of the localization system. In order to select the optimal node combination, traditional algorithms based on GDOP need to spend much time on calculating every possible combination of nodes. This paper proposes GDOP assisted nodes selection (GANS) algorithm to calculate GDOP value of the current geometric distribution. Sensor node's contribution to the overall GDOP value is adopted as the evaluation criteria. The nodes whose contribution value is greater than the threshold will be selected. The anchor nodes subset, which participates in the positioning, will be real-time determined. Simulation results show that the GANS algorithm can effectively reduce the energy consumption of the system, while the positioning accuracy has no obvious loss. Meanwhile, computational complexity is also obviously decreased.https://doi.org/10.1155/2014/404812 |
| spellingShingle | Yunzhou Zhang Dongfei Wei Wenyan Fu Bing Yang Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks International Journal of Distributed Sensor Networks |
| title | Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks |
| title_full | Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks |
| title_fullStr | Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks |
| title_full_unstemmed | Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks |
| title_short | Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks |
| title_sort | target positioning with gdop assisted nodes selection algorithm in wireless sensor networks |
| url | https://doi.org/10.1155/2014/404812 |
| work_keys_str_mv | AT yunzhouzhang targetpositioningwithgdopassistednodesselectionalgorithminwirelesssensornetworks AT dongfeiwei targetpositioningwithgdopassistednodesselectionalgorithminwirelesssensornetworks AT wenyanfu targetpositioningwithgdopassistednodesselectionalgorithminwirelesssensornetworks AT bingyang targetpositioningwithgdopassistednodesselectionalgorithminwirelesssensornetworks |