Assessment of structured codes efficiency in feedback data transmission systems

Results of noiseproof structured codes application in feedback data transmission systems are discussed. A new technique of noiseproof code construction allows for the correction of both independent and byte-type errors. High noise immunity of the codes is achieved in the systems realizing the repetition of messages with error recognition. These codes are particularly efficient when the probability of independent and byte-type errors is high (of the order of 0.1), while the error probability at the decoder output should not exceed 10/sup -5/.