Title :
Weight error loss in MIMO systems with adaptive transmit and receive beamformers
Author :
Ermolayev, V.T. ; Flaksman, A.G. ; Kovalyov, I.P. ; Averin, I.M.
Author_Institution :
MERA scientific-technical company, Nizhny Novgorod, Russia
Abstract :
The effects of non-ideal channel estimation in multiple-input-multiple-output (MIMO) wireless communication systems using the eigenchannel technique for the independent symbol transmission are investigated in this paper. Analytical expression is derived for the Shannon capacity for arbitrary signal-to-noise ratio (SNR), training sequence length (TSL), transmit and receive antenna numbers. The weight error loss (WEL) that quantifies the increase in signal-to-noise ratio (SNR) required to meet a given capacity target due to weight jitter are investigated.
Keywords :
MIMO systems; antenna arrays; channel estimation; eigenvalues and eigenfunctions; multipath channels; radiocommunication; receiving antennas; transmitting antennas; MIMO systems; Shannon capacity; adaptive receive beamformers; adaptive transmit beamformers; arbitrary signal-to-noise ratio; eigenchannel technique; multiple-input-multiple-output wireless communication systems; non-ideal channel estimation; receive antenna; training sequence length; transmit antenna; weight error loss; Adaptive systems; Channel estimation; Crosstalk; Jitter; MIMO; Matrix decomposition; Propagation losses; Receiving antennas; Signal to noise ratio; Transmitting antennas;
Conference_Titel :
Antenna Theory and Techniques, 2003. 4th International Conference on
Print_ISBN :
0-7803-7881-4
DOI :
10.1109/ICATT.2003.1239222
