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research article
On Wide Band Broadcast Channels
We study the capacity regions of various broadband degraded broadcast channels including the degraded Poisson broadcast channel and the degraded very-noisy broadcast channel. It is shown that in the absence of dark current the capacity region of the degraded Poisson broadcast channel is achievable with a simple time-sharing strategy, and an analogous result is proved for the degraded very-noisy broadcast channel with binary inputs. Conditions are derived for time-sharing to be optimal for a general degraded very-noisy broadcast channel.
Type
research article
Authors
Publication date
2003
Published in
Volume
49
Issue
12
Start page
3250
End page
3258
Peer reviewed
REVIEWED
Available on Infoscience
November 22, 2006
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