Title :
Least-Squares based channel estimation for MIMO relays
Author :
Lioliou, Panagiota ; Viberg, Mats
Author_Institution :
Chalmers Univ. of Technol., Goteborg
Abstract :
A least-squares based channel estimation algorithm is proposed for relay-assisted wireless multiple-input multiple-output (MIMO) channels. The method consists of a sequence of LS-problems with the purpose to arrive to a computationally efficient solution. The performance of the proposed algorithm is evaluated as a function of the input signal-to-noise ratio (SNR) for randomly generated Rayleigh flat fading channels. Finally, we study the effect of the channel estimation error on the performance of a MIMO zero-forcing receiver in order to verify the presented analysis.
Keywords :
MIMO communication; Rayleigh channels; channel estimation; least squares approximations; relays; LS-problems; MIMO relays; Rayleigh flat fading channels; SNR; channel estimation; least-squares estimation; signal-to-noise ratio; wireless multiple-input multiple-output channels; zero-forcing receiver; Channel estimation; Fading; Hydrogen; MIMO; Modulation coding; Performance analysis; Relays; Signal generators; Signal to noise ratio; Wireless communication;
Conference_Titel :
Smart Antennas, 2008. WSA 2008. International ITG Workshop on
Conference_Location :
Vienna
Print_ISBN :
978-1-4244-1756-8
Electronic_ISBN :
978-1-4244-1757-5
DOI :
10.1109/WSA.2008.4475542
