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.
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