DocumentCode
2055659
Title
Optimized LDPC codes for partial response channels
Author
Varnica, Nedeljko ; Kavcic, Aleksandar
Author_Institution
DEAS, Harvard Univ., Cambridge, MA, USA
fYear
2002
fDate
2002
Firstpage
197
Abstract
We construct codes that can closely approach (and possibly ultimately achieve) the i.i.d. capacity of an intersymbol interference (ISI) channel with inputs confined to binary values. We use the low-density-parity-check (LDPC) degree sequences optimization method proposed by Richardson, Shokrollahi and Urbanke (see IEEE Trans. Inform. Theory, vol.47, p.619-37, February 2001) and appropriately modify it for ISI channels.
Keywords
channel capacity; intersymbol interference; optimisation; parity check codes; partial response channels; ISI channel; LDPC codes; i.i.d. capacity; intersymbol interference channel; low-density-parity-check degree sequences; optimization; optimized degree sequences; partial response channels; AWGN channels; Channel capacity; Convolution; Intersymbol interference; Optimization methods; Parity check codes; Partial response channels; Random processes; Upper bound; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN
0-7803-7501-7
Type
conf
DOI
10.1109/ISIT.2002.1023469
Filename
1023469
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