吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (4): 1151-1156.

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ELMAP: an improved algorithm based on LMAP

GUAN Xin-ping1,2|WANG Sheng2|LIU Zhi-xin2   

  1. 1.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China；2.Institute of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China
  • Received:2009-09-22 Online:2011-07-01 Published:2011-07-01

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Abstract:

In this paper, an improved localization algorithm, called Enhance Localization with Mobile Anchor Points (ELMAP), is developed. This improved algorithm is based on Localization with Mobile Anchor Points (LMAP) algorithm. ELMAP improves the original beacon point selection for the sake of shaking off the dependence on the assumption of transmission range and enhancing the localization performance in practice. It selects the beacon messages, possessing the same value of Receive Signal Strength (RSS), as the beacon points to estimate the coordinates of unknown nodes. Simulation results show that the environment adaptability of ELMAP algorithm is much stronger than LMAP algorithm, and the performance could be optimized by adjusting the number of the beacon messages and restricting the RSS value of the beacon points.

Key words: communication, mobile anchor point, localization, wireless sensor networks, RSSI algorithm, LMAP algorithm, ELMAP algorithm

CLC Number: 

  • TN91
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