Network Coding for Line Networks with Broadcast Channels
Gerhard G. Kramer, Seyed Mohammadsadegh Tabatabaei Yazdi · Entropy · 2012
An achievable rate region for line networks with edge and node capacity constraints and broadcast channels (BCs) is derived. The region is shown to be the capacity region if the BCs are orthogonal, deterministic, physically degraded, or packet erasure with one-bit feedback. If the BCs are physically degraded with additive Gaussian noise then independent Gaussian inputs achieve capacity.