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| The Application of Modified Shuttled Frog Leaping Algorithm in the Positioning of Wireless Sensor Network |
| FENG Chen1,2, ZHANG Ling-hua1,2 |
1. College of Telecommunications & Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210003, China;
2. Key Lab of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210003, China |
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Abstract To improve the node positioning accuracy of the DV-Hop (Distance Vector Hop) algorithm in wireless sensor network, a method with the modified shuttled frog leaping algorithm is proposed. At first, the unknown nodes are located by DV-Hop algorithm, then the source of error and transform localization mechanism into solving a total nonlinear least squares model is analyzed. Afterwards, the reasonable weighting factor and fitness function are choosed. Meanwhile, the modified shuttled frog leaping algorithm with chaos mapping and Cauchy mutation is used to optimize the location of the unknown nodes. In the experiment, least square method, particle swarm optimization and modified shuttled frog leaping algorithm are compared. The results show that the intelligent algorithm is not only easy and reliable, but also the precision of the node positioning efficiently is improved.
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2013, Vol. 34 
