Paper Info
Title
Blind Low Complexity Time-Of-Arrival Estimation Algorithm for UWB Signals
Abstract
This letter presents a novel time-of-arrival (TOA) blind estimation technique for ultra wideband energy detection receivers with reduced complexity. The proposed method is blind in the sense that it does not exploit any information about channel or noise power. This new approach is based on a set of approximations of the exact likelihood function (ELF) of the observed energy. Even though these approximations achieve an important reduction of complexity, the shape of the new approximated function is accurate enough compared to the ELF. Application of a threshold to the differential of the approximated log-likelihood function completes the procedure. Simulations show that the performance of the proposed method in terms of the cumulative distribution function of the estimation error approaches that of a method based on the ELF and a genie-aided algorithm with perfect knowledge of the optimal threshold.
Year
DOI
Venue
2015
10.1109/LSP.2015.2450999
Signal Processing Letters, IEEE
Keywords
Field
DocType
computational complexity,radio receivers,signal detection,statistical distributions,time-of-arrival estimation,ultra wideband communication,ELF,TOA blind estimation technique,UWB signal,blind low complexity time-of-arrival estimation algorithm,complexity reduction,cumulative distribution function,exact likelihood function,genie-aided algorithm,ultra wideband energy detection receiver,Localization,UWB,ranging,time-of-arrival
Likelihood function,Noise power,Ground-penetrating radar,Algorithm,Communication channel,Ultra-wideband,Cumulative distribution function,Mathematics,Time of arrival
Journal
Volume
Issue
ISSN
22
11
1070-9908
Citations 
PageRank 
References 
2
0.45
0
Authors
6
Name
Order
Citations
PageRank
Arias-de-Reyna, E.120.45
Murillo-Fuentes, J.J.2376.55
Boloix-Tortosa, R.320.45
Eva Arias-de-Reyna451.89
Juan José Murillo-Fuentes518223.93
Rafael Boloix-Tortosa6427.20