This article characterizes new boundary points on the capacity region of certain classes of more capable broadcast channels (BC) with uni-directional cooperation from the stronger to the weaker receiver. The new boundary points are achieved by a simple coding scheme that employs superposition coding at the transmitter with decode and forward at the stronger receiver. We evaluate our general result for Gaussian BCs and for a BC consisting of a binary erasure channel (BEC) to the stronger receiver and a binary symmetric channel (BSC) to the weaker receiver.

翻译：本文刻画了具有从较强接收端向较弱接收端单向协作的若干类更优广播信道容量域的新边界点。这些新边界点通过一种简单的编码方案实现，该方案在发射端采用叠加编码，并在较强接收端采用解码转发。我们将一般性结果应用于高斯广播信道，以及一个由较强接收端的二进制擦除信道与较弱接收端的二进制对称信道构成的广播信道。