@inproceedings{05d334c8620c4e8c8cbfe4a4707b760e,
title = "Multi- User MIMO Broadcast Systems With Imperfect Feedbacks",
abstract = "In this paper, we investigate the impact of imperfect feedback on the multi-user multi-input multi-output (MU-MIMO) broadcast systems. We consider the MU-MIMO system with either zero-forcing (ZF)-based transmit beamforming or receive beamforming. By analysis and simulations, we find that if the effects of feedback channel variations are taken into account, the receive ZF MIMO broadcast system can have higher sum rate than the transmit ZF MIMO broadcast system. The transmit ZF scheduler outperforms the receive ZF scheduler at the cost of feedback bandwidth and perfect channel state information.",
keywords = "MIMO broadcast channels, MIMO systems, Scheduling, Zero-forcing beamforming, Zero-forcing receiver",
author = "Li-Chun Wang and Yeh, {Chu Jung}",
year = "2009",
month = nov,
day = "30",
doi = "10.1145/1582379.1582488",
language = "English",
isbn = "9781605585697",
series = "Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009",
pages = "500--504",
booktitle = "Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009",
note = "null ; Conference date: 21-06-2009 Through 24-06-2009",
}