Boosting performance of multi-user Tomlinson-Harashima precoding

In the precoding matrices of the best-known multi-user Tomlinson-Harashima precoder, only the sum of noise powers of all users is used; information on the individual users' powers is thus under-utilised. A method is proposed to take into account the individual noise powers of users in the preco...

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Bibliographic Details
Published inElectronics letters Vol. 46; no. 16; p. 1
Main Authors Dào, N-D, Sun, Y
Format Journal Article
LanguageEnglish
Published Stevenage John Wiley & Sons, Inc 05.08.2010
Subjects
Bandwidth
Noise
Optimization
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Summary:In the precoding matrices of the best-known multi-user Tomlinson-Harashima precoder, only the sum of noise powers of all users is used; information on the individual users' powers is thus under-utilised. A method is proposed to take into account the individual noise powers of users in the precoding matrices for system-wise performance optimisation, while users' noise powers may not be explicitly fedback to save uplink bandwidth.
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ISSN:0013-5194
1350-911X