Superior NDA ML delay and gain estimators for UWB channels

Authors:
Yunfei Chen;Norman C. Beaulieu
Affiliations:
School of Engineering, University of Warwick, Coventry, UK;Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 2
Cited 0

Channel estimation for ultra-wideband communications

IEEE Journal on Selected Areas in Communications
Performance of ultra-wideband communications with suboptimal receivers in multipath channels

IEEE Journal on Selected Areas in Communications

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Abstract

Novel non-data-aided maximum likelihood estimators for the delays and the attenuations in an ultra-wide bandwidth channel are proposed. Numerical results show that these new estimators outperform the previous non-data-aided maximum likelihood channel estimators derived in the literature. Moreover, in some cases, the performances of the new non-data-aided estimators approach those of the data-aided estimators, enabling us to reduce the overhead expense of pilot symbols.