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Low-rate non-binary ldpc codes for coherent and blockwise non-coherent awgn channels
Publikationstyp
Journal Article
Date Issued
2013-09-16
Sprache
English
Institut
TORE-URI
Volume
61
Issue
10
Start Page
4096
End Page
4107
Article Number
6600719
Citation
IEEE Transactions on Communications 10 (61): art. no. 6600719 i.e. pp. 4096-4107 (2013)
Publisher DOI
Scopus ID
Low-rate non-binary low-density parity-check (LDPC) codes for coherent and blockwise non-coherent additive white Gaussian noise (AWGN) channels are developed. The proposed construction is based on the concatenation of non-binary outer LDPC codes with inner binary codes. In case the binary codes are chosen to be Hadamard or Reed-Muller (RM) codes, the complexity of the decoding scheme is considerably reduced. An asymptotic analysis of the concatenation with help of composite capacity considerations anddensity evolution (DE) is provided, from which guidelines on the choice of both inner and outer codes are devised. Finite length designs presented in this work confirm the excellent performance of the proposed codes. © 2013 IEEE.
Subjects
Blockwise non-coherent AWGN channel
code design
coherent AWGN channel
concatenated codes
low-rate non-binary LDPC/turbo codes
DDC Class
600: Technik
620: Ingenieurwissenschaften