Title :
ML receiver for pulsed UWB signals and partial channel state information
Author :
Weisenhorn, Martin ; Hirt, Walter
Author_Institution :
IBM Zurich Res. Lab., Ruschlikon, Switzerland
Abstract :
In this work we derive the optimal receiver for pulsed UWB signals and partial channel state information in the form of the average power delay profile of the received pulses. A simple channel model is presented in which the average power delay profile is an explicit feature. The corresponding maximum-likelihood receiver turns out to be a noncoherent receiver which, in contrast to the noncoherent receiver without channel state information, applies an appropriate weighting to the received signal. The performance of this new receiver is evaluated by simulation and for a practical channel estimation procedure. The results show a performance improvement due to partial channel state information of up to 2 dB.
Keywords :
channel estimation; maximum likelihood estimation; radio receivers; ultra wideband communication; wireless channels; average power delay profile; channel estimation; maximum-likelihood receiver; noncoherent receiver; partial channel state information; power delay profile; pulsed UWB signals; Bit error rate; Channel estimation; Channel state information; Delay; Laboratories; Maximum likelihood estimation; Pulse modulation; Pulse shaping methods; RAKE receivers; Shape;
Conference_Titel :
Ultra-Wideband, 2005. ICU 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-9397-X
DOI :
10.1109/ICU.2005.1569980