Sparse code multiple access (SCMA) is a class of non-orthogonal multiple access (NOMA)
that is proposed to support uplink machine-type communication services. In an SCMA …

Sparse code multiple access (SCMA) is a new non-orthogonal multiple access scheme,
which effectively exploits the shaping gain of multi-dimensional codebook. In this paper, a …

Sparse code multiple access (SCMA) is a competitive non-orthogonal multiple access
technique for the fifth generation (5G) wireless communications. The SCMA codebook …

Sparse code multiple access (SCMA) is a promising uplink multiple access technique that
can achieve superior spectral efficiency, provided that multidimensional codebooks are …

Sparse code multiple access (SCMA) is a novel non-orthogonal multiple access scheme,
which exploits a multidimensional constellation based on the non-orthogonal spreading …

In this paper, we propose to use golden angle modulation (GAM) points to construct
codebooks for uplink and downlink sparse code multiple access (SCMA) systems. We …

Sparse code multiple access (SCMA) is a non-orthogonal codebook (CB) based multiple
access scheme, proposed to cope with the heterogeneous and challenging performance …

Sparse code multiple access (SCMA), which helps improve spectrum efficiency (SE) and
enhance connectivity, has been proposed as a non-orthogonal multiple access (NOMA) …

For sparse code multiple access (SCMA) with traditional codebooks, the initial information of
message passing algorithm (MPA) receiver is easily susceptible to noise and multipath …

This paper investigates the constellation/codebook design of a promising uplink multiple
access technique, sparse code multiple access (SCMA), proposed for the fifth generation …