DocumentCode :
1011226
Title :
A novel self-pilot-based transmit-receive architecture for multipath-impaired UWB systems
Author :
Baccarelli, Enzo ; Biagi, Mauro
Author_Institution :
INFO-COM Dept., Univ. di Roma La Sapienza, Rome, Italy
Volume :
52
Issue :
6
fYear :
2004
fDate :
6/1/2004 12:00:00 AM
Firstpage :
891
Lastpage :
895
Abstract :
In the last few years, ultra-wideband (UWB) systems became an appealing technology for wireless communication applications. Unfortunately, when the transmission channel is affected by intersymbol interference (ISI), system performance of UWB systems equipped with receivers based on conventional matched filters presents error-floor phenomena. Aimed by these considerations, in this letter, we present a novel transmit-receive scheme allowing blind channel estimation and minimum mean-square error linear channel equalization. Essentially, the proposed scheme exploits a very short duration of the UWB pulse for achieving reliable blind deconvolution of the received signal. A nice feature of the resulting system is that blind deconvolution of the received signal is achieved without power and throughput losses. Simulation results support the effectiveness of the proposed scheme, and show that it is able to gain about 8 dB over current UWB receivers based on matched filtering on several test channels impaired by ISI.
Keywords :
blind equalisers; broadband networks; channel estimation; deconvolution; intersymbol interference; least mean squares methods; matched filters; radio networks; radio receivers; radiofrequency interference; 8 dB; blind channel estimation; blind deconvolution; error-floor phenomena; intersymbol interference; matched filters; minimum mean-square error linear channel equalization; multipath-impaired UWB systems; self-pilot-based transmit-receive architecture; transmission channel; ultrawideband systems; wireless communication; Blind equalizers; Communications technology; Deconvolution; Intersymbol interference; Matched filters; Power system reliability; System performance; Throughput; Ultra wideband technology; Wireless communication;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2004.829525
Filename :
1306613
Link To Document :
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