Abstract
Efficient algorithms are derived for maximum likelihood (ML) soft-decision decoding of some binary self-dual codes. A family of easily decodable self-dual codes is derived by modifying a known F/sub 24/, which has a weight distribution resembling that of the (24, 12, 8) Golay code G/sub 24/. The ML decoding of F/sub 24/ is accomplished by only 227 real additions, compared to 651 required for G/sub 24/, yet the error rates of the two decoders are similar for moderate noise conditions. >
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