Title :
Improved solution of Cramer-Rao lower bound for TOA/RSS localization
Author :
Holotyak, Taras ; Voloshynovskiy, Svyatoslav ; Rolim, Jose ; Prudyus, Ivan
Author_Institution :
Dept. of Comput. Sci., Univ. of Geneva, Geneva, Switzerland
Abstract :
In this paper the problem of evaluation of bound accuracy for the range based localization techniques in the wireless sensor networks is considered. The comprehensive analysis of the existing solution of the Cramer-Rao lower bound problem for the anchored localization based on the time of arrival or relative signal strength principles shows certain discrepancy between analytical solution and simulation results. Therefore, new bound for this problem using more accurate stochastic modeling of localization error is proposed.
Keywords :
stochastic processes; time-of-arrival estimation; wireless sensor networks; Cramer-Rao lower bound; TOA-RSS localization; signal strength principles; stochastic modeling; wireless sensor networks; Analytical models; Benchmark testing; Entropy; Large Hadron Collider; Measurement uncertainty; Navigation; Wireless sensor networks; Crame-Rao lower bound; localization; wireless sensor networks;
Conference_Titel :
Modern Problems of Radio Engineering Telecommunications and Computer Science (TCSET), 2012 International Conference on
Conference_Location :
Lviv-Slavske
Print_ISBN :
978-1-4673-0283-8
