Title :
Jointly Optimized Downlink Multiuser MIMO OFDM Precoding System
Author :
Kim, Kyeong Jin ; Jianzhong Zhang
Author_Institution :
Nokia Inc., Irving
Abstract :
In this paper, we extend a jointly optimized linear prefilter and nonlinear vector perturbation approach to the MIMO multiuser (MU) precoder system where each user has multiple antennas. As a prefilter design, we use the weighted MMSE criterion. Based on the best weighting condition, we propose a recursive MMSE prefilter.
Keywords :
MIMO communication; OFDM modulation; least mean squares methods; multiuser channels; precoding; MIMO multiuser precoder system; jointly optimized downlink multiuser MIMO OFDM precoding system; jointly optimized linear prefilter; nonlinear vector perturbation approach; prefilter design; recursive MMSE prefilter; weighted MMSE criterion; Broadcasting; Downlink; Interference; MIMO; OFDM; Quality of service; Receiving antennas; Telecommunications; Transmitting antennas; Vectors;
Conference_Titel :
Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2109-1
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2007.4487220
