An Achievable Rate for the Multiple-Level Relay Channel
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For the multiple-level relay channel, an achievable rate formula, and a simple coding scheme to achieve it, are presented. Generally, higher rates can be achieved with this coding scheme in the multiple-level relay case than previously known. For a class of degraded channels, this achievable rate is shown to be the exact capacity. An application of the coding scheme to the all cast problem is also discussed. 2005 IEEE.
IEEE Transactions on Information Theory
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