Efficient Tomlinson-Harashima precoding ordering using QR decomposition

W.E.A.E. Alhanafy, S. Weiss

Research output: Contribution to conferencePaper


In this paper, we investigate the effect of precoding ordering on systems with successive interference cancellation for multiple-input multiple-output (MIMO) ,i.e., Tomlinson-Harashima precoding (THP). Based on the well known QR decomposition, a simple precoding ordering scheme based on a per-layer mean square error (M SE) criterion of the diagonal entries of the R-factor is proposed. In addition, an efficient point-to-point communications while in [8,9] transmit feed forward filter is used, allowing point-to-multi-point communications (downlink scenarios) with decentralised and noncooperatives implereceivers.
Original languageEnglish
Number of pages4
Publication statusPublished - Aug 2009
Event17th European Signal Processing Conference - Glasgow, Scotland
Duration: 24 Aug 200928 Aug 2009


Conference17th European Signal Processing Conference
CityGlasgow, Scotland


  • multiple-input multiple-output (MIMO)
  • Tomlinson-Harashima precoding (THP)
  • degrees of freedom (DoF)
  • optimal detection ordering scheme

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    Alhanafy, W. E. A. E., & Weiss, S. (2009). Efficient Tomlinson-Harashima precoding ordering using QR decomposition. 343-347. Paper presented at 17th European Signal Processing Conference, Glasgow, Scotland, .