Title :
Weighted Rake receiver for UWB communications with channel estimation errors
Author :
Zhou, Lei ; Zhou, Shidong ; Yao, Yan
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
In this paper, a new weighted max-ratio-combining (MRC) selective Rake (SRake) receiver is proposed for a pulse based UWB system with channel estimation errors. Thanks to the prior knowledge of the multipath channel, our new method can further improve the BER performance compared with the conventional MRC Rake receiver. We analyze the new scheme in a theoretical way and the performance improvement is also evaluated in the IEEE 802.15.3a ultra-wideband channel model through computer simulation.
Keywords :
IEEE standards; channel estimation; diversity reception; error statistics; indoor radio; multipath channels; personal area networks; radio receivers; ultra wideband communication; BER performance; IEEE 802.15.3a; MRC receiver; SRake receiver; UWB communications; channel estimation errors; max-ratio-combining receiver; multipath channel; pulse based UWB system; selective Rake receiver; ultra-wideband channel model; weighted Rake receiver; Bit error rate; Channel estimation; Computer errors; Computer simulation; Fading; Multipath channels; Performance analysis; RAKE receivers; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1493444
