Initial results on an MMSE precoding and equalisation approach to MIMO PLC channels

Stephan Weiss, Nicola Moret, Andrew Paul Millar, Andrea Tonello, Robert Stewart

Research output: Contribution to conferencePaper

7 Citations (Scopus)
57 Downloads (Pure)

Abstract

This paper addresses some initial experiments using polynomial matrix decompositions to construct MMSE precoders and equalisers for MIMO power line communications (PLC) channels. The proposed scheme is based on a Wiener formulation based on polynomial matrices, and recent results to design and implement such systems with polynomial matrix tools. Applied to the MIMO PLC channel, the strong spectral dynamics of the PLC system together with the long impulse responses contained in the MIMO system result in problems, such that diagonlisation and spectral majorisation is mostly achieved in bands of high energy, while low-energy bands can resist any diagonalisation efforts. We introduce the subband approach in order to deal with this problem. A representative example using a simulated MIMO PLC channel is presented.
Original languageEnglish
Pages146-152
Number of pages7
DOIs
Publication statusPublished - 5 May 2011
Event15th IEEE International Symposium on Power Line Communications and its Applications 2011 - University of Udine, Udine, Italy
Duration: 3 Apr 20116 Apr 2011
http://www.ieee-isplc.org/2011/

Conference

Conference15th IEEE International Symposium on Power Line Communications and its Applications 2011
Abbreviated titleISPLC 2011
CountryItaly
CityUdine
Period3/04/116/04/11
Internet address

Keywords

  • mimo plc channels;s;
  • precoding
  • power line communications
  • mimo communication
  • carrier transmission
  • power lines
  • polynomial matrices
  • equalisers

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