publication . Contribution for newspaper or weekly magazine . Conference object . 2009

Feedback reliability calculation for an iterative block decision feedback equalizer

Gillian Huang; Andrew Nix; Simon Armour;
Open Access English
  • Published: 01 Sep 2009
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • Country: United Kingdom
Abstract
A new class of iterative block decision feedback equalizer (IB-DFE) was pioneered by Chan and Benvenuto. Unlike the conventional DFE, the IB-DFE is optimized according to the reliability of the feedback (FB) symbols. Since the use of the training sequence (TS) for feedback reliability (FBR) estimation lowers the bandwidth efficiency, FBR estimation without the need for additional TS is of considerable interest. However, prior FBR estimation is limited in the literature to uncoded M-ary phaseshift keying (PSK). In this paper we investigate FBR calculation methods for uncoded and coded M-ary quadrature amplitude modulation (QAM) systems. Results show that our newl...
Subjects
free text keywords: Signal-to-noise ratio, Bandwidth (signal processing), Iterative method, Electronic engineering, Control theory, Keying, Quadrature amplitude modulation, Computer science, QAM, Spectral efficiency, Phase-shift keying
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publication . Contribution for newspaper or weekly magazine . Conference object . 2009

Feedback reliability calculation for an iterative block decision feedback equalizer

Gillian Huang; Andrew Nix; Simon Armour;