The Capacity of a Relay Channel, Both With and Without Delay

Authors:
E. C. van der Meulen;P. Vanroose
Affiliations:
Katholieke Univ., Leuven;-
Venue:
IEEE Transactions on Information Theory
Year:
2007

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Abstract

In this correspondence, we point out the incorrectness of an upper bound in van der Meulen (Advances in Applied Probability, vol. 3, no. 1, pp. 120-154, 1971) and report the correct relay capacity for one of the examples given there. We also show that, when viewed as a relay-without-delay channel, the capacity of this channel is strictly larger than its classical relay capacity.