Optimal BD-ZF precoder for multi-user MIMO downlink transmission

For multi-user MIMO downlink transmission, a block-diagonal zero-forcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal B...

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Vydáno v:Electronics letters Ročník 51; číslo 14; s. 1121 - 1123
Hlavní autoři: Yao, Rugui, Nan, Huani, Xu, Juan, Li, Geng
Médium: Journal Article
Jazyk:angličtina
Vydáno: The Institution of Engineering and Technology 09.07.2015
Témata:
Antennas
base station
Blocking
block‐diagonal zero‐forcing precoder
determinant maximisation technique
Determinants
Gain
Interference
interference suppression
Mathematical models
MIMO communication
MUI suppression
multiple‐input multiple‐output transmission
multiuser interference suppression
multiuser MIMO downlink transmission
optimal BD‐ZF precoder
optimisation
Optimization
precoding
throughput improvement
Wireless communications
multiple-input multiple-output transmission
interference suppression
determinants
determinant maximisation technique
multiuser interference suppression
precoding
MUI suppression
optimal BD-ZF precoder
BS
optimisation
block-diagonal zero-forcing precoder
multiuser MIMO downlink transmission
base station
MIMO communication
throughput improvement
ISSN:0013-5194, 1350-911X, 1350-911X
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Abstract For multi-user MIMO downlink transmission, a block-diagonal zero-forcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal BD-ZF precoder is developed to maximise throughput using the determinant maximisation technique. It helps to gather all gain for the transmission of each user. Numerical results validate that the precoder obtains throughput improvement.
AbstractList For multi-user MIMO downlink transmission, a block-diagonal zero-forcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal BD-ZF precoder is developed to maximise throughput using the determinant maximisation technique. It helps to gather all gain for the transmission of each user. Numerical results validate that the precoder obtains throughput improvement.
Author Li, Geng
Nan, Huani
Xu, Juan
Yao, Rugui
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  organization: School of Electronic and Control Engineering, Chang'an University, Xi'an, People's Republic of China
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  surname: Li
  fullname: Li, Geng
  organization: School of Electronics and Information, Northwestern Polytechnical University, Xi'an, People's Republic of China
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Cites_doi 10.1109/TIT.2003.813523
10.1137/0129043
10.1109/TSP.2003.821107
10.1109/TCOMM.2004.840638
10.1109/LSP.2014.2311459
10.1017/CBO9780511807213
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Issue 14
Keywords multiple-input multiple-output transmission
interference suppression
determinants
determinant maximisation technique
multiuser interference suppression
precoding
MUI suppression
optimal BD-ZF precoder
BS
optimisation
block-diagonal zero-forcing precoder
multiuser MIMO downlink transmission
base station
MIMO communication
throughput improvement
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Snippet For multi-user MIMO downlink transmission, a block-diagonal zero-forcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a...
For multi‐user MIMO downlink transmission, a block‐diagonal zero‐forcing (BD‐ZF) precoder is usually used to suppress multi‐user interference. In the case of a...
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SubjectTerms Antennas
base station
Blocking
block‐diagonal zero‐forcing precoder
determinant maximisation technique
Determinants
Gain
Interference
interference suppression
Mathematical models
MIMO communication
MUI suppression
multiple‐input multiple‐output transmission
multiuser interference suppression
multiuser MIMO downlink transmission
optimal BD‐ZF precoder
optimisation
Optimization
precoding
throughput improvement
Wireless communications
Title Optimal BD-ZF precoder for multi-user MIMO downlink transmission
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