Quantized CDI based Tomlinson Harashima precoding for broadcast channels

Israa Slim, Amine Mezghani, Josef A. Nossek

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

For the Multiuser Multiple-Input Single-Output (MUMISO) system in a downlink (DL) scenario, we design a non-linear precoding scheme, namely the spatial Tomlinson-Harashima precoder (S-THP) based on the total mean squared error (MSE) criterion. The channel state information (CSI) available at the transmitter for the precoding is the quantized channel direction information (CDI) relayed back in a frequency division duplex (FDD) system from each receiver using B feedback bits received erroneously and quasi-instantaneous. The proposed MMSE-STHP with a suboptimum precoding order clearly outperforms the linear precoding scheme given in [1] starting from a certain Signal-to-Noise Ratio (SNR) and a number of feedback bits in terms of Bit Error Ratio (BER).

Original languageEnglish
Title of host publication2011 IEEE International Conference on Communications, ICC 2011
DOIs
StatePublished - 2011
Event2011 IEEE International Conference on Communications, ICC 2011 - Kyoto, Japan
Duration: 5 Jun 20119 Jun 2011

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

Conference2011 IEEE International Conference on Communications, ICC 2011
Country/TerritoryJapan
CityKyoto
Period5/06/119/06/11

Keywords

  • BC channels
  • MU-MISO
  • Quantized and estimated CSI
  • Tomlinson Harashima Precoding

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