Multi-Class Source-Channel Coding Articles uri icon

authors

  • BOCHAROVA, IRINA E.
  • FABREGAS, ALBERT I GUILLEN
  • KUDRYASHOV, BORIS D.
  • Martinez, Alfonso
  • Tauste Campo, Adrià
  • VAZQUEZ VILAR, GONZALO

publication date

  • September 2016

start page

  • 5093

end page

  • 5104

issue

  • 9

volume

  • 62

International Standard Serial Number (ISSN)

  • 0018-9448

Electronic International Standard Serial Number (EISSN)

  • 1557-9654

abstract

  • This paper studies an almost-lossless source-channel coding scheme in which source messages are assigned to different classes and encoded with a channel code that depends on the class index. The code performance is analyzed by means of random-coding error exponents and validated by simulation of a low-complexity implementation using existing source and channel codes. While each class code can be seen as a concatenation of a source code and a channel code, the overall performance improves on that of separate source-channel coding and approaches that of joint source-channel coding when the number of classes increases.

keywords

  • source-channel coding; error exponent; unequal error protection; uep; ldpc; mathematical-theory; data-compression; codes; communication