This paper studies a downlink system that combines orthogonal-time-frequency-space
(OTFS) modulation and sparse code multiple access (SCMA) to support massive …

This paper conceives a novel sparse code multiple access (SCMA) codebook design which
is motivated by the strong need for providing ultra-low decoding complexity and good error …

Sparse code multiple access (SCMA) is a promising technique for the enabling of massive
connectivity in future machine-type communication networks, but it suffers from a limited …

Orthogonal time frequency space (OTFS) modulation has recently been recognized as a
promising modulation scheme for high-mobility wireless communications systems. This …

As a code-domain non-orthogonal multiple access technique, sparse code multiple access
(SCMA) is considered as a promising technique for future wireless Internet of Things (IoT) …

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

In this letter, the codebook design criteria for uplink Rician fading channels are explored.
The probability distribution of the weighted sums of the Rician random variables from each …

This letter presents an enhanced design of multi-dimensional (MD) constellations which play
a pivotal role in many communication systems such as code-domain non-orthogonal …

In this paper, a joint design of sparse code multiple access (SCMA) codebook and peak-to-
average power ratio (PAPR) reduction based on the partial transmit sequence (PTS) …

In an active sensing system, waveforms with good auto-correlations are preferred for
accurate parameter estimation. Furthermore, spectral compatibility is required to avoid …