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Generalized fixed points of permutations with application to estimation of minimum distance of turbo codes

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2 Author(s)
Daneshgaran, F. ; Dept. of Electr. & Comput. Eng., California State Univ., Los Angeles, CA, USA ; Mondin, M.

In this paper we present a systematic technique for obtaining all the input sequences that are mapped by a given permutation either to themselves or to shifted versions of themselves (generically called permutation fixed points). Subsequently, we present a new class of permutations that nearly achieve the lower bound on the number of possible fixed points associated with a given permutation of prime length p.

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Global Telecommunications Conference, 1999. GLOBECOM '99  (Volume:5 )

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