Convolutional codes from "optimal" linear block codes

Both non-recursive and recursive (i.e. turbo codes) convolutional codes (CCs) require careful choices of generators to obtain codes with large minimum distance and ultimately low bit error rate for a given channel characteristic. We first give a constructive method for building a generator matrix of...

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description Both non-recursive and recursive (i.e. turbo codes) convolutional codes (CCs) require careful choices of generators to obtain codes with large minimum distance and ultimately low bit error rate for a given channel characteristic. We first give a constructive method for building a generator matrix of either type of convolutional code based on certain low rate high distance linear block codes. For non-recursive CCs, these linear block codes have optimal dimension given block length n and minimum distance d if 2d>n. For recursive CCs, the linear block codes are constructed to appear random as determined by certain randomness tests.
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identifier ISSN: 1058-6393
ispartof Conference Record of The Thirtieth Asilomar Conference on Signals, Systems and Computers, 1996, p.853-857 vol.2
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language eng
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Block codes
Clouds
Convolutional codes
Decoding
Ear
Linear code
Sampling methods
Shape
Turbo codes
Upper bound
title Convolutional codes from "optimal" linear block codes
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