DocumentCode :
672636
Title :
Performance of LMS, NLMS and LMF algorithms in tracking time-varying UWB channels
Author :
Nunoo, Solomon ; Chude-Okonkwo, Uche A. K. ; Ngah, Razali
Author_Institution :
Wireless Commun. Centre, Univ. Teknol. Malaysia, Skudai, Malaysia
fYear :
2013
fDate :
8-10 Oct. 2013
Firstpage :
312
Lastpage :
316
Abstract :
There has been extensive discussions on the performance of the LMS algorithm in nonstationary environment. In some instances its performance in such environments has been compared with that of other adaptive algorithms. However, most existing works treated in this respect focus on narrowband channels. In this paper, we investigate the performance of the LMS, NLMS and LMF algorithms in tracking time-varying ultra wideband (UWB) channels. Channel measurements were conducted for an indoor environment and the resultant channel impulse response is used in the analysis. The results show that the LMF and NLMS algorithms outperform the LMS algorithm in time-varying UWB channels with the NLMS providing the best performance.
Keywords :
indoor radio; least mean squares methods; time-varying channels; transient response; ultra wideband communication; LMF algorithms; LMS performance; NLMS algorithms; adaptive algorithms; channel impulse response; channel measurements; indoor environment; least mean square algorithm; nonstationary environment; time-varying UWB channels tracking; time-varying ultra wideband channels; Algorithm design and analysis; Conferences; Equations; Least squares approximations; Mathematical model; Optimized production technology; Signal processing algorithms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal and Image Processing Applications (ICSIPA), 2013 IEEE International Conference on
Conference_Location :
Melaka
Print_ISBN :
978-1-4799-0267-5
Type :
conf
DOI :
10.1109/ICSIPA.2013.6708024
Filename :
6708024
Link To Document :
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