Title :
On wideband broadcast channels
Author :
Lapidoth, Amos ; Telatar, Emre ; Urbanke, Rudiger
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
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
Keywords :
Poisson distribution; broadcast channels; channel capacity; interference (signal); binary inputs; capacity region; capacity regions; degraded Poisson broadcast channel; degraded broadcast channels; degraded very-noisy broadcast channel; simple time-sharing strategy; wideband broadcast channels; Broadband communication; Broadcast technology; Broadcasting; Channel capacity; Dark current; Degradation; Memoryless systems; Performance loss; Time sharing computer systems; Wideband;
Conference_Titel :
Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-5000-6
DOI :
10.1109/ISIT.1998.708786
