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Performance of adaptive low-density parity check codes in a low-cost spectrum-sliced wavelength division multiplex network
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Sun, Shaobo and Leeson, Mark S. (2011) Performance of adaptive low-density parity check codes in a low-cost spectrum-sliced wavelength division multiplex network. IET Optoelectronics, Vol.5 (No.2). pp. 83-92. doi:10.1049/iet-opt.2010.0003 ISSN 1751-8768.
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Official URL: http://dx.doi.org/10.1049/iet-opt.2010.0003
Abstract
Regular low-density parity-check (LDPC) codes have been applied for the first time to a low-cost spectrum-sliced wavelength division multiplex system. The Gaussian approximation of the noise in such system has been commonly used in previous studies, and there is a standard LDPC for symmetric additive white Gaussian noise channels. However, in the system considered here, the actual noise character is asymmetric and is chi-square distributed. Owing to the specific channel property, an adaptive decoding algorithm based on the precise chi-square noise statistics has been proposed and proved to outperform decoding with conventional Gaussian approximations. Simulations are conducted for various code rates. The results show that such a forward error correction scheme provides significant coding gain for a dedicated system in terms of improving the overall transmission capacity and available power budget.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Library of Congress Subject Headings (LCSH): | Optoelectronics, Wavelength division multiplexing, Optical communications, Random noise theory | ||||
Journal or Publication Title: | IET Optoelectronics | ||||
Publisher: | The Institution of Engineering and Technology | ||||
ISSN: | 1751-8768 | ||||
Official Date: | April 2011 | ||||
Dates: |
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Volume: | Vol.5 | ||||
Number: | No.2 | ||||
Number of Pages: | 10 | ||||
Page Range: | pp. 83-92 | ||||
DOI: | 10.1049/iet-opt.2010.0003 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Warwick Postgradute Research Fellowship, Overseas Research Student Award Scheme |
Data sourced from Thomson Reuters' Web of Knowledge
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