  In this article, we provide both analytical and numerical performance
analysis of multi-service oriented multiple access (MOMA), a recently proposed
non-orthogonal multiple-access scheme for scenarios with a massive number of
concurrent connections originating from separate service classes with diverse
quality-of-service (QoS) profiles and running on both handheld terminals and
Internet-of-Things (IoT) devices. MOMA is based on both class dependent
hierarchical-spreading transmission scheme and per-class reception structure.
The performance analysis presented in this article is based on realistic
channel and signal models for scenarios where the base station is equipped with
a large number of antennas. It provides asymptotically exact approximations of
the ergodic rates achievable by MOMA.
