Capacity Parametrization of a Multiple-Access Binary Adder Channel with Shared Information

The results of [D. Slepian and J. K. Wolf, Bell Syst. Tech. J., 1973, vol. 52, no. 7, pp. 1037–1076; T. M. Cover and C. S. K. Leung, IEEE Trans. Inf. Theory, 1981, vol. 27, no. 3, pp. 292–298; F. M. J. Willems, IEEE Trans. Inf. Theory, 1982, vol. 28, no. 1, pp. 93–95] are applied to derive analytical expressions for the characteristic cross sections of the set of admissible rate triples for a`binary adder channel with shared information. The numerical values of the coordinates of the extreme points in these regions are determined.