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SC-LDPC Codes over the Block-Fading Channel: Robustness to a Synchronisation Offset

Andriyanova, Iryna ; ul Hassan, Najeeb ; Lentmaier, Michael LU and Fettweis, Gerhard (2015) IEEE BlackSeaCom
Abstract
Spatially-Coupled LDPC (SC-LDPC) codes have been recently shown to be very efficient for transmissions over nonergodic channels, in particular over block-fading channels [1]. In fact, it is possible to design a SC-LDPC code with any given code diversity [2]. In this work, we investigate the performance of SC-LDPC codes over block-fading channels, assuming a mismatch (or offset) between the first bit of a transmission packet and a first bit of a codeword. Such a mismatch is called the synchronisation offset, and it has a negative impact on the code diversity. We propose a data-allocation scheme for SC-LDPC codes that allows to obtain a robustness to the synchronisation offset. Combined together with the code design from [2], it allows to... (More)
Spatially-Coupled LDPC (SC-LDPC) codes have been recently shown to be very efficient for transmissions over nonergodic channels, in particular over block-fading channels [1]. In fact, it is possible to design a SC-LDPC code with any given code diversity [2]. In this work, we investigate the performance of SC-LDPC codes over block-fading channels, assuming a mismatch (or offset) between the first bit of a transmission packet and a first bit of a codeword. Such a mismatch is called the synchronisation offset, and it has a negative impact on the code diversity. We propose a data-allocation scheme for SC-LDPC codes that allows to obtain a robustness to the synchronisation offset. Combined together with the code design from [2], it allows to design efficient SC-LDPC codes, whose performance degrades only slowly under imperfect transmission conditions. (Less)
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author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
spatial coupling, spatially coupled codes, LDPC codes, LDPC convolutional codes, block fading channel, root LDPC codes
host publication
[Host publication title missing]
pages
5 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE BlackSeaCom
conference location
Constanta, Romania
conference dates
2015-05-19
external identifiers
  • scopus:84949494940
language
English
LU publication?
yes
id
5aea2e07-7164-4daa-80db-984ad2784f29 (old id 5385240)
date added to LUP
2016-04-04 10:31:38
date last changed
2022-01-29 20:26:10
@inproceedings{5aea2e07-7164-4daa-80db-984ad2784f29,
  abstract     = {{Spatially-Coupled LDPC (SC-LDPC) codes have been recently shown to be very efficient for transmissions over nonergodic channels, in particular over block-fading channels [1]. In fact, it is possible to design a SC-LDPC code with any given code diversity [2]. In this work, we investigate the performance of SC-LDPC codes over block-fading channels, assuming a mismatch (or offset) between the first bit of a transmission packet and a first bit of a codeword. Such a mismatch is called the synchronisation offset, and it has a negative impact on the code diversity. We propose a data-allocation scheme for SC-LDPC codes that allows to obtain a robustness to the synchronisation offset. Combined together with the code design from [2], it allows to design efficient SC-LDPC codes, whose performance degrades only slowly under imperfect transmission conditions.}},
  author       = {{Andriyanova, Iryna and ul Hassan, Najeeb and Lentmaier, Michael and Fettweis, Gerhard}},
  booktitle    = {{[Host publication title missing]}},
  keywords     = {{spatial coupling; spatially coupled codes; LDPC codes; LDPC convolutional codes; block fading channel; root LDPC codes}},
  language     = {{eng}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{SC-LDPC Codes over the Block-Fading Channel: Robustness to a Synchronisation Offset}},
  url          = {{https://lup.lub.lu.se/search/files/5559759/5385258.pdf}},
  year         = {{2015}},
}