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Volume 30 Issue 5
Dec.  2010
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Liu Feng, Zhang Han, Yang Ji. An Average One-hop Distance Estimation Algorithm Based on Weighted Disposal in Wireless Sensor Network[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1222-1225. doi: 10.3724/SP.J.1146.2007.00735
Citation: Liu Feng, Zhang Han, Yang Ji. An Average One-hop Distance Estimation Algorithm Based on Weighted Disposal in Wireless Sensor Network[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1222-1225. doi: 10.3724/SP.J.1146.2007.00735

An Average One-hop Distance Estimation Algorithm Based on Weighted Disposal in Wireless Sensor Network

doi: 10.3724/SP.J.1146.2007.00735
  • Received Date: 2007-05-15
  • Rev Recd Date: 2008-03-08
  • Publish Date: 2008-05-19
  • Localization is one of the key technologies in wireless sensor network. Only the average one-hop distance estimated by the nearest anchor was used in DV-Hop localization algorithm, but the value estimated by a single anchor can not reflect the whole networks actual average one-hop distance. A novel algorithm is proposed to estimate the average one-hop distance based on weighted disposal. The average one-hop distance estimated by several anchors is used in this algorithm and assigned different weights according to the hops to the unknown node. The unknown nodes average one-hop distance is estimated more accurate and the localization precision is improved. Simulation results demonstrate that the average one-hop distance is estimated more exactly in the proposed algorithm than that of DV-Hop, the root mean square error is decreased and the location precision is improved.
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