Turbo code: Difference between revisions

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'''Turbo codes''' are a class of recently-developed high-performance [[error-correcting code|error correction codes]] finding use in deep-space satellite communications and other applications where designers seek to achieve maximal information transfer over a limited-bandwidth communication link in the presence of data-corrupting noise. Of all practical error correction methods known to date, Turbo codes come closest to approaching the [[Shannon Limit]], the theoretical limit of maximum information transfer rate over a noisy channel.

The method was introduced by [[Claude Berrou|Berrou]], Glaviuex[[Alain Glavieux|Glavieux]], and Thitimajshima in their [[1993]] paper: "''Near Shannon Limit error-correcting coding and decoding: Turbo-codes''" published in the Proceedings of IEEE International Communications Conference. Turbo code refinements and implementation are an area of active research at a number of universities.

Prior to Turbo codes, the best known technique combined a [[Reed-Solomon error correction]] [[block code]] with a [[Viterbi algorithm]] [[convolutional code]].