On Non-Orthogonal Multiple Access With Finite-Alphabet Inputs in Z-Channels
On Non-Orthogonal Multiple Access With Finite-Alphabet Inputs in Z-Channels
This paper focuses on the design of non-orthogonal multiple access in a classical two-transmitter two-receiver Z-channel, wherein one transmitter sends information to its intended receiver from the direct link while the other transmitter sends information to both receivers from the direct and cross links. Unlike most existing designs using (continuous) …