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Achieving unequal error protection via woven codes: Construction and analysis

Johannesson, Rolf LU ; Pavlushkov, Victor LU and Zyablov, Viktor (2005) In Information Processes (Electronic Scientific Journal) 5(2). p.132-158
Abstract
In this paper several rate R = 2/5 convolutional encoding matrices with four states are used to illustrate how unequal error protection can be achieved for the different positions in the code sequences as well as in the information sequences. Free output- and input-distances and active burst output- and input-distances are computed. Typically a single code cannot combine a large free output- or input-distance with a steep slope. A constructive way to obtain powerful "unequal" coding schemes that provide both large distances and steep slopes is to combine several constituent encoders. Various woven schemes are studied and lower bounds on the active burst output- and input-distances are derived.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Information Processes (Electronic Scientific Journal)
volume
5
issue
2
pages
132 - 158
ISSN
1819-5822
language
English
LU publication?
yes
id
fb4ae2b3-b02c-4b4a-a02b-bff6845b9908 (old id 628514)
alternative location
http://www.jip.ru/2005/132-158.pdf
date added to LUP
2007-11-26 13:08:00
date last changed
2016-04-16 10:52:40
@misc{fb4ae2b3-b02c-4b4a-a02b-bff6845b9908,
  abstract     = {In this paper several rate R = 2/5 convolutional encoding matrices with four states are used to illustrate how unequal error protection can be achieved for the different positions in the code sequences as well as in the information sequences. Free output- and input-distances and active burst output- and input-distances are computed. Typically a single code cannot combine a large free output- or input-distance with a steep slope. A constructive way to obtain powerful "unequal" coding schemes that provide both large distances and steep slopes is to combine several constituent encoders. Various woven schemes are studied and lower bounds on the active burst output- and input-distances are derived.},
  author       = {Johannesson, Rolf and Pavlushkov, Victor and Zyablov, Viktor},
  issn         = {1819-5822},
  language     = {eng},
  number       = {2},
  pages        = {132--158},
  series       = {Information Processes (Electronic Scientific Journal)},
  title        = {Achieving unequal error protection via woven codes: Construction and analysis},
  volume       = {5},
  year         = {2005},
}