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Two edge type LDPC codes for the wiretap channel
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9307-484X
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2009 (English)In: Conference Record - Asilomar Conference on Signals, 2009, Vol. Systems and Computers, 834-838 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider transmission over a wiretap channel where both the main channel and the wiretapper's channel are Binary Erasure Channels (BEC). We propose a code construction using two edge type LDPC codes based on the method of Thangaraj, Dihidar, Calderbank, McLaughlin and Merolla. The advantage of our construction is that we can easily calculate the threshold over the main channel. Using standard LDPC codes with a given threshold over the BEC we give a construction for a two edge type LDPC code with the same threshold. Since this construction gives a code for the main channel with threshold zero we also give numerical methods to find two edge type LDPC codes with non-zero threshold for the main channel.

Place, publisher, year, edition, pages
2009. Vol. Systems and Computers, 834-838 p.
Keyword [en]
Binary erasure channel, Code construction, LDPC codes, Two-edge type LDPC code, Wiretap channel, Coding errors, Numerical methods, Communication channels (information theory)
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-30321DOI: 10.1109/ACSSC.2009.5469981Scopus ID: 2-s2.0-77953825394OAI: oai:DiVA.org:kth-30321DiVA: diva2:400093
Conference
43rd Asilomar Conference on Signals, Systems and Computers; Pacific Grove
Note

QC 20110224

Available from: 2011-02-24 Created: 2011-02-23 Last updated: 2016-05-23Bibliographically approved

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Thobaben, RagnerSkoglund, Mikael

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  • apa
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