Title :
Vectorial multipath channel estimation for the UTRA-TDD mode
Author :
Marques, P. ; Gameiro, A. ; Fernandes, J.
Author_Institution :
Instituto de Telecomunicacoes, Aveiro Univ., Portugal
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper, deals with channel estimation for UTRA-TDD. Based on the algorithm suggested by the 3GPP for scalar channels, a maximum likelihood (ML) approach for vectorial channel estimation, to include also the estimation of the direction-of-arrival, is proposed. The performance of the algorithm is assessed by resorting to simulations in typical UMTS scenarios, and also by comparing the RMS estimation errors against the Cramer-Rao bound. The results show that good performance is achievable from low to high values of Eb/N0, provided the path components are separated by more than 2 chips
Keywords :
cellular radio; code division multiple access; direction-of-arrival estimation; maximum likelihood estimation; multipath channels; multiuser channels; radio access networks; 3GPP; Cramer-Rao bound; DoA estimation; MLE; RMS estimation errors; UMTS; UTRA-TDD mode; WCDMA systems; algorithm performance; commercial simulation software package; complex impulse response; direction-of-arrival estimation; maximum likelihood approach; scalar channels; simulations; vectorial multipath channel estimation; 3G mobile communication; Bit error rate; Channel estimation; Delay; Direction of arrival estimation; Maximum likelihood estimation; Multiaccess communication; Multipath channels; Scattering; Telecommunications;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956505
