Enhanced Limited Feedback Schemes for DL MU-MIMO ZF Precoding

This paper proposes new limited-feedback Channel State Information (CSI) calculation schemes for Zero Forcing (ZF)-precoded downlink Multi-User Multiple-Input Multiple-Output (MU-MIMO) systems. It is a common understanding that the feedback quantized by the codebook limits the performance of MU-MIMO...

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Veröffentlicht in:	IEEE transactions on wireless communications Jg. 12; H. 4; S. 1554 - 1561
Hauptverfasser:	Wei Wang, Harada, Atsushi, Kayama, Hidetoshi
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	New York, NY IEEE 01.04.2013 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:	Antennas Applied sciences broadcast channels Channels Coding, codes Decoders Decoding Detection, estimation, filtering, equalization, prediction Downlink Errors Exact sciences and technology Feedback Information, signal and communications theory Interference Mathematical analysis MU-MIMO Quantization (signal) Radiocommunications Receivers Signal and communications theory Signal to noise ratio Signal, noise Studies Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Vectors Vectors (mathematics) Weight reduction Performance evaluation MIMO system Multiple access Parameter estimation Quantization error Coding circuit Transmitter Feedback regulation Downlink MU-MIMO Decoding Mean square error feedback Codebook Simulation Coding Channel estimation Broadcast channels Intermediate frequency Pretreatment Feedforward Signal to interference plus noise ratio Receiving antenna
ISSN:	1536-1276, 1558-2248
Online-Zugang:	Volltext
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