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 …

The massive connectivity is among other unprecedented requirements which are expected
to be satisfied in order to follow the perpetual increase of connected devices in the era of …

Non-orthogonal multiple access (NOMA) is one promising technology, which provides high
system capacity, low latency, and massive connectivity, to address several challenges in the …

Sparse code multiple access (SCMA) is one of the competitive non-orthogonal multiple
access (NOMA) techniques for the next generation of communication systems. In this paper …

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), as a codebook-based non-orthogonal multiple access
(NOMA) technique, has received research attention in recent years. The codebook design …

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

Sparse code multiple access (SCMA) has been one of the non-orthogonal multiple access
(NOMA) schemes aiming to support high spectral efficiency and ubiquitous access …

Sparse code multiple access (SCMA) has become a highly competitive technology for future
cellular systems. For the receiver of the SCMA system, besides the traditional maximum …

Sparse code multiple access (SCMA) is a promising multiuser communication technique for
the enabling of future massive machine-type networks. Unlike existing codebook design …