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Published February 29, 1996 | public
Journal Article

Effective free distance of turbo codes

Abstract

The authors define and study the effective free distance of a turbo code. If a turbo code is constructed from a number of component codes, they argue that the effective free distance can be maximised by choosing the component codes to be IIR convolutional code fragments with maximal input weight-2 free distance. They then present some theoretical bounds for, and some numerical tables of; IIR code fragments with maximal input weight-2 free distance.

Additional Information

© 1996 The Institution of Engineering and Technology. The authors thank S.W. Golomb for his help in the derivation of Theorem 2. The research described in this paper was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. McEliece's contribution was also partially supported by NSF grant no. NCR-9505975 and a grant from Pacific Bell.

Additional details

Created:
August 20, 2023
Modified:
October 24, 2023