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\section{Rate Adaptation for Multiuser Networks}  Rate adaptation for a single-user  MISO networks can be implemented as follows: \begin{enumerate}  1. Offline-designed codebooks for the transmitter's rate and transmit beamforming vectors are designed, denoted by $\mathcal{C}_{R}$ and $\mathcal{C}_{b}$.  2. The receiver obtains the channel vector ${\pmb h}$  \end{enumerate}  \section{Non-Orthogonal Multiple-Access: NOMA}