In time-varying channels, the channel state information available at the transmitter (CSIT) is outdated due to inherent time delay between the uplink channel estimation and the downlink data transmission in TDD systems. In this letter, we propose an iterative precoding method and a linear decoding method which are both based on minimum mean-squared error (MMSE) criteria to mitigate the interference among data streams and users created by outdated CSIT for multiuser MIMO downlink systems. Analysis and simulation results show that the proposed method can effectively reduce the impairment of the outdated CSIT and improve the system capacity.
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Hongmei WANG, Xibin XU, Ming ZHAO, Weiling WU, Yan YAO, "MIMO Broadcast Transmission Strategy over Fast Time-Varying Channels" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 8, pp. 2731-2735, August 2008, doi: 10.1093/ietcom/e91-b.8.2731.
Abstract: In time-varying channels, the channel state information available at the transmitter (CSIT) is outdated due to inherent time delay between the uplink channel estimation and the downlink data transmission in TDD systems. In this letter, we propose an iterative precoding method and a linear decoding method which are both based on minimum mean-squared error (MMSE) criteria to mitigate the interference among data streams and users created by outdated CSIT for multiuser MIMO downlink systems. Analysis and simulation results show that the proposed method can effectively reduce the impairment of the outdated CSIT and improve the system capacity.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.8.2731/_p
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@ARTICLE{e91-b_8_2731,
author={Hongmei WANG, Xibin XU, Ming ZHAO, Weiling WU, Yan YAO, },
journal={IEICE TRANSACTIONS on Communications},
title={MIMO Broadcast Transmission Strategy over Fast Time-Varying Channels},
year={2008},
volume={E91-B},
number={8},
pages={2731-2735},
abstract={In time-varying channels, the channel state information available at the transmitter (CSIT) is outdated due to inherent time delay between the uplink channel estimation and the downlink data transmission in TDD systems. In this letter, we propose an iterative precoding method and a linear decoding method which are both based on minimum mean-squared error (MMSE) criteria to mitigate the interference among data streams and users created by outdated CSIT for multiuser MIMO downlink systems. Analysis and simulation results show that the proposed method can effectively reduce the impairment of the outdated CSIT and improve the system capacity.},
keywords={},
doi={10.1093/ietcom/e91-b.8.2731},
ISSN={1745-1345},
month={August},}
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TY - JOUR
TI - MIMO Broadcast Transmission Strategy over Fast Time-Varying Channels
T2 - IEICE TRANSACTIONS on Communications
SP - 2731
EP - 2735
AU - Hongmei WANG
AU - Xibin XU
AU - Ming ZHAO
AU - Weiling WU
AU - Yan YAO
PY - 2008
DO - 10.1093/ietcom/e91-b.8.2731
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2008
AB - In time-varying channels, the channel state information available at the transmitter (CSIT) is outdated due to inherent time delay between the uplink channel estimation and the downlink data transmission in TDD systems. In this letter, we propose an iterative precoding method and a linear decoding method which are both based on minimum mean-squared error (MMSE) criteria to mitigate the interference among data streams and users created by outdated CSIT for multiuser MIMO downlink systems. Analysis and simulation results show that the proposed method can effectively reduce the impairment of the outdated CSIT and improve the system capacity.
ER -