Aspects presented herein may improve communications at high bandwidth or coverage limited scenarios, which may specify high transceiver energy efficiency and robustness to non-linear power amplifiers. In one aspect, a first network node transmits first information indicative of at least one of a modulation scheme or a modulation parameter to a second network node, where the modulation scheme is from a set of modulation schemes and the modulation parameter is associated with the modulation scheme, and where the set of modulation schemes includes one or more of: APSK, QAM, CPM, ceCPM, or MACPM. The first network node, from the second network node, second information indicative of at least one of the modulation scheme or the modulation parameter associated with the modulation scheme for at least one transmission.