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This paper defines a class of δ-decodable codes for the two-user multiple-access adder channel with binary inputs. This class is a generalization of the class of two-user codes investigated by Kasami and Lin (1978). Lower bounds on the achievable rates of codes in this class are derived. We show that, for a wide range of error correcting capability, this class contains good two-user δ-decodable codes with rates lying above the timesharing line.
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