Title :
Grid-search-based hybrid TOA/AOA location techniques for NLOS environments
Author :
Xie, Yaqin ; Wang, Yan ; Zhu, Pengcheng ; You, Xiaohu
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
fDate :
4/1/2009 12:00:00 AM
Abstract :
For geometrically based single bounce circular model (GBSBCM), a new grid-search based technique is proposed to solve the constraint, nonlinear, underdetermined equations for wireless location in non-lineof-sight (NLOS) environments. Under the assumption of relatively small measurement errors of angle of arrival (AOA) and time of arrival (TOA), more accurate location results than those of existing methods can be achieved by searching in the feasible area.
Keywords :
direction-of-arrival estimation; nonlinear equations; time-of-arrival estimation; wireless channels; NLOS environments; angle of arrival location; constraint equations; geometrically based single bounce circular model; grid search; hybrid TOA/AOA location; nonlinear equations; nonlineof-sight environments; time of arrival location; underdetermined equations; wireless location; Base stations; Geometry; Helium; Measurement errors; Mobile communication; Noise measurement; Nonlinear equations; Position measurement; Scattering; Solid modeling; Grid search, non-line-of-sight (NLOS), time of arrival (TOA), angle of arrival (AOA).;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2009.082218
