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On the girth of Tanner (3,7) quasi-cyclic LDPC codes
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نویسنده
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Gholami Mohammad ,Mostafaiee Fahime Sadat
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منبع
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transactions on combinatorics - 2012 - دوره : 1 - شماره : 2 - صفحه:1 -16
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چکیده
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S. kim et al. have been analyzed the girth of some algebraically structured quasi-cyclic (qc) low-density parity-check (ldpc) codes, i.e. tanner (3; 5) of length 5p, where p is a prime of the form 15m + 1. in this paper, by extension this method to tanner (3; 7) codes of length 7p, where p is a prime of the form 21m+ 1, the girth values of tanner (3; 7) codes will be derived. as an advantage, the rate of tanner (3; 7) codes is about 0:17 more than the rate of tanner (3; 5) codes
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کلیدواژه
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LDPC codes ,Tanner graph ,girth
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آدرس
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shahrekord university, Department of Mathematics, ایران, malekeashtar university of technology, Department of Mathematics, ایران
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پست الکترونیکی
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fmostafaiee@yahoo.com
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Authors
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