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) is an attractive non-orthogonal multiple access
(NOMA) technology. An effective SCMA codebook design metrics is maximizing minimum …

Sparse code multiple access (SCMA) is a promising non-orthogonal multiple access
technique to support massive connectivity for future wireless Internet of Things (IoT) …

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 …

Multicarrier CDMA is a multiplexing approach in which modulated QAM symbols are spread
over multiple OFDMA tones by using a generally complex spreading sequence. Effectively, a …

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) 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 potential candidate for improving spectral
efficiency through overloading over resources. This letter proposes a comprehensive …

Sparse code multiple access (SCMA) is one of the most intensively investigated non-
orthogonal multiple access (NOMA) techniques for the fifth generation communication (5G) …

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 …