Improved and Extended Range Scale Algorithm for Wireless Cellular Location

被引：19

作者：

Wu, Shixun ^{[1
]}

Li, Jiping ^{[1
]}

Liu, Shouyin ^{[1
]}

Chong, Jong-Wha ^{[2
]}

机构：

[1] Cent China Normal Univ, Dept Elect & Informat Engn, Wuhan 430079, Hubei, Peoples R China

[2] Hanyang Univ, Sch Elect & Commun Eng, Seoul, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2012年 / 16卷 / 02期

关键词：

Non-line of sight (NLOS); time of arrival (TOA); constrained optimization; wireless location;

D O I：

10.1109/LCOMM.2011.111611.111416

中图分类号：

TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构];

摘要：

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.

引用

页码：196 / 198

页数：3

共 11 条

[1]

Brida P, 2010, ELEKTRON ELEKTROTECH, P113

[2]

Brida P., P 2006 CSNDSP, P748

[3]

Caffery J., P IEEE VEH TECHN C, P1943

[4]

Dehghani H. L., P 2011 IEEE NEW TECH, P1