Improved and Extended Range Scale Algorithm for Wireless Cellular Location
- Title
- Improved and Extended Range Scale Algorithm for Wireless Cellular Location
- Author
- 정정화
- Keywords
- Non-line of sight (NLOS); time of arrival (TOA); constrained optimization; wireless location
- Issue Date
- 2012-02
- Publisher
- IEEE
- Citation
- IEEE Communications Letters, Feb 2012, 16(2), P.196-198
- Abstract
- The range scale algorithm (RSA) proposed in 2004 is a constrained optimization problem with only three base stations (BSs). In this letter, by introducing a new variable to replace the square term, the quadratic objective function of the constrained optimization problem in RSA is turned into a linear objective function. Then the computational complexity is reduced and the performance is improved. Moreover, when the number of BSs is larger than three, we construct a new objective function and give the corresponding constraints. So the RSA is extended for more BSs and the performance of positioning is improved significantly. Simulation results demonstrate that our proposed algorithms improve the location accuracy over traditional algorithms in different Non-line-of-sight (NLOS) environments.
- URI
- http://ieeexplore.ieee.org/document/6093913/
- ISSN
- 1089-7798
- DOI
- 10.1109/LCOMM.2011.111611.111416
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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