%0 Journal Article
%T Adaptive low-rank channel estimation for multi-band OFDM ultra-wideband communications
%A Hu Chia-Chang
%A Lee Shih-Chang
%J EURASIP Journal on Advances in Signal Processing
%D 2011
%I Springer
%X In this paper, an adaptive channel estimation scheme based on the reduced-rank (RR) Wiener filtering (WF) technique is proposed for multi-band (MB) orthogonal frequency division multiplexing (OFDM) ultra-wideband (UWB) communication systems in multipath fading channels. This RR-WF-based algorithm employs an adaptive fuzzy-inference-controlled (FIC) filter rank. Additionally, a comparative investigation into various channel estimation schemes is presented as well for MB-OFDM UWB communication systems. As a consequence, the FIC RR-WF channel estimation algorithm is capable of producing the bit-error-rate (BER) performance similar to that of the full-rank WF channel estimator and superior than those of other interpolation-based channel estimation schemes.
%K channel estimation
%K MB-OFDM
%K ultra-wideband (UWB)
%K Wiener filter
%U http://asp.eurasipjournals.com/content/2011/1/64