Algorithm for NLOS mitigation in wireless location systems

Ming Rong Ren*, Pu Wang, Hui Qing Zhang, Xing Qiao Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In order to mitigate location error caused mainly by non-line-of-sight (NLOS) propagation, a new algorithm called window function compensation is proposed. By measuring the delay spread of p values, the mean excess delay can be obtained. Window function, whose length is p, is adopted to calibrate NLOS errors. Compared with Wang xin optimal method, the complexity of the new algorithm is greatly reduced. Compared with Jeong method, which calibrates single value, the location accuracy is greatly improved. The computer simulations are done when mobile is in three different positions. The results show high accuracy.

Original languageEnglish
Pages (from-to)257-260
Number of pages4
JournalBeijing Gongye Daxue Xuebao / Journal of Beijing University of Technology
Volume33
Issue number3
Publication statusPublished - Mar 2007
Externally publishedYes

Keywords

  • Mean excess delay
  • Non-line-of-sight
  • Time of arrival
  • Window function

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