Approximately optimal transmit precoding for MIMO systems with imperfect feedback using directional derivative

An approximately optimal transmit precoding for MIMO systems with imperfect feedback, subject to sum power constraint, is proposed in this paper by using directional derivative. The proposed method is easily carried out, and can be applied to more general channel which follows a nonwhite covariance...

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Published inProceedings of the 30th Chinese Control Conference pp. 4393 - 4396
Main Authors Dai Jisheng, Sun Yueping, Qin Yun
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2011
Subjects
Array signal processing
Closed-form solution
Directional Derivative
Gaussian Broadcast Channel
Imperfect Feedback
MIMO
Multiple-Input Multiple-Output (MIMO)
Resource management
Signal to noise ratio
Simulation
Transmitters
Online AccessGet full text
ISBN9781457706776
1457706776
ISSN1934-1768

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Abstract An approximately optimal transmit precoding for MIMO systems with imperfect feedback, subject to sum power constraint, is proposed in this paper by using directional derivative. The proposed method is easily carried out, and can be applied to more general channel which follows a nonwhite covariance and nonzero mean complex Gaussian distribution. Additionally, a closed-form solution for power allocation is given, which has not been addressed before. Simulation results demonstrate the effectiveness of the sub-optimal algorithm.
AbstractList An approximately optimal transmit precoding for MIMO systems with imperfect feedback, subject to sum power constraint, is proposed in this paper by using directional derivative. The proposed method is easily carried out, and can be applied to more general channel which follows a nonwhite covariance and nonzero mean complex Gaussian distribution. Additionally, a closed-form solution for power allocation is given, which has not been addressed before. Simulation results demonstrate the effectiveness of the sub-optimal algorithm.
Author Sun Yueping
Qin Yun
Dai Jisheng
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  surname: Sun Yueping
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  surname: Qin Yun
  fullname: Qin Yun
  email: qinyun@ujs.edu.cn
  organization: Coll. of Electron. & Inf. Eng., Jiangsu Univ., Zhenjiang, China
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Snippet An approximately optimal transmit precoding for MIMO systems with imperfect feedback, subject to sum power constraint, is proposed in this paper by using...
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StartPage 4393
SubjectTerms Array signal processing
Closed-form solution
Directional Derivative
Gaussian Broadcast Channel
Imperfect Feedback
MIMO
Multiple-Input Multiple-Output (MIMO)
Resource management
Signal to noise ratio
Simulation
Transmitters
Title Approximately optimal transmit precoding for MIMO systems with imperfect feedback using directional derivative
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