Classical Information Capacity of the Bosonic Broadcast Channel

  title={Classical Information Capacity of the Bosonic Broadcast Channel},
  author={Saikat Guha and Jeffrey H. Shapiro},
  journal={2007 IEEE International Symposium on Information Theory},
We show that when coherent-state encoding is employed in conjunction with coherent detection, the Bosonic broadcast channel is equivalent to a classical degraded Gaussian broadcast channel whose capacity region is dual to that of the classical Gaussian multiple-access channel. We further show that if a minimum output-entropy conjecture holds true, then the ultimate classical information capacity of the Bosonic broadcast channel can be achieved by a coherent-state encoding. We provide some… CONTINUE READING
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