On the Free Distance of LDPC Convolutional Codes
- Shridharan, A.
- Truhachev, Dmitri
- Lentmaier, Michael
- Zigangirov, Kamil
Publication date
January 2004
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
A lower bound on the free distance of LDPC convolutional codes defined by syndrome former matrices comprised of MtimesM permutation matrices is derived. We show that asymptotically, i.e., as Mrarrinfin, for almost all codes in the ensemble the free distance grows linearly with constraint lengt
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