Improved Correction Localization Algorithm Based on Wave Direction Spectrum for Underwater Wireless Sensor Networks
نویسندگان
چکیده
Localization is an important topic in the underwater wireless sensor networks (UWSN) because sensor nodes are randomly scattered over a region and can get connected into a network on their own. In this paper, we proposed an improved correction localization algorithm based on wave direction spectrum for underwater wireless sensor networks. First, we use the length of anchor nodes and depth of nodes to compute the radius and achieve the initial positioning. Second, we estimate the moving distance of nodes through analyzing the wave direction spectrum, the correction coefficient was computed for X-axis, Y-axis, Z-axis respectively to correct the coordinate. Simulation shows that the localization accuracy of the proposed algorithm is better under the same time and speed environment than USP algorithm and SLMP algorithm. Copyright © 2014 IFSA Publishing, S. L.
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