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A new look at the informational gain of soft decisions

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Title: A new look at the informational gain of soft decisions
Author: Lexa, Michael; Johnson, Don
Type: Conference Paper
Keywords: soft decisions; digital communication; information processing
Citation: M. Lexa and D. Johnson,"A new look at the informational gain of soft decisions," in IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP),
Abstract: This paper develops a new systematic method of studying the benefits of 2-bit soft decisions by applying the concepts of information processing theory. We quantify performance in terms of the information transfer ratio and demonstrate the performance gain over hard decision detectors in several noise environments. In addition, we show that likelihood ratio tests maximize the information transfer ratio, and we propose a method of optimizing threshold values for the 2-bit soft decision detector.
Date Published: 2003-04-20

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  • ECE Publications [1030 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [508 items]
    Publications by Rice Faculty and graduate students in digital signal processing.