Accession Number : AD0714268

Title :   Cascaded Tree Codes.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS

Personal Author(s) : Ramsey,John L.

Report Date : 01 SEP 1970

Pagination or Media Count : 115

Abstract : Cascaded codes are long codes that are constructed by successively encoding a series of relatively short constituent codes. The purpose of cascading is to facilitate decoding by dividing the composite decoding process into a sequence of relatively simple steps, each of which corresponds to the decoding of one of the constituent codes. One studies cascading techniques in which the constituent codes are tree codes. One determines the efficiency attainable with cascading, and bound the attainable error probability in terms of the composite decoding complexity. (Author)

Descriptors :   (*CODING, MATHEMATICAL ANALYSIS), (*DECODING, ALGORITHMS), COMMUNICATION SYSTEMS, DATA PROCESSING, PROBABILITY, ERRORS, DISTRIBUTION THEORY, MATRICES(MATHEMATICS), RANDOM VARIABLES

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE