Title :
An effective channel estimation method in multi-band UWB system
Author :
Lei, Wen ; Qimei, Cui ; Xiaofeng, Tao ; Ping, Zhang
Author_Institution :
Wireless Technol. Innovation Lab, Beijing, China
fDate :
29 Aug.-1 Sept. 2004
Abstract :
This paper introduces a channel estimation method used in the multi-band ultra-wideband (UWB) communication system in which RAKE receiver is applied in analog domain in order to make full use of multi-path channel property. This channel estimation method is based on maximum-likelihood (ML) criterion and it practically gets the delay and magnitude of the estimated paths, which is a preferable power convergence of channel impulse response (CIR). Simulation is carried out under the channel model given by IEEE P802.15 working group to verify that under a certain SNR, this method is well effective to this multi-band UWB system.
Keywords :
channel estimation; delays; maximum likelihood estimation; multipath channels; radio receivers; ultra wideband communication; IEEE P802.15 working group; RAKE receiver; SNR; analog domain; channel estimation method; channel impulse response; maximum-likelihood criterion; multiband UWB system; multipath channel property; power convergence; signal-to-noise ratio; ultrawideband communication system; Bandwidth; Channel estimation; Convergence; Delay estimation; Fading; Maximum likelihood estimation; Multipath channels; Power system modeling; Proposals; Ultra wideband technology;
Conference_Titel :
Communications, 2004 and the 5th International Symposium on Multi-Dimensional Mobile Communications Proceedings. The 2004 Joint Conference of the 10th Asia-Pacific Conference on
Print_ISBN :
0-7803-8601-9
DOI :
10.1109/APCC.2004.1391678
