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 …

The conventional grant-based network relies on the handshaking between the base station
and active devices to achieve dynamic multi-user scheduling, which may result in large …

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) is a promising code-domain non-orthogonal multiple
access (NOMA) technique that supports high-level connectivity. Through the combination of …

Multi-user spatial modulation (SM) assisted by sparse code multiple access (SCMA) has
been recently proposed to provide uplink high spectral efficiency transmission. The …

The recent paradigm shift towards the transmission of large numbers of mutually interfering
information streams, as in the case of aggressive spatial multiplexing, combined with …

Index Modulation Multiple Access (IMMA) technique is proposed recently as a viable
candidate for future wireless networks. The idea is to utilize the available orthogonal …

Sparse code multiple access (SCMA) has exhibited superiority in spectrum efficiency, which
is particularly essential in the Internet of Things (IoT) system where a steadily increasing …