Inspec keywords: multi-access systems; matrix algebra; 5G mobile communication; information theory

Other keywords: regular low-dense NOMA; regularity feature; system achievable rates; code-domain nonorthogonal multiple access; sparsity feature; NOMA spreading matrix; information-theoretic limits; 5G; load feature; code-domain NOMA schemes; number-of-resource elements; extreme low-dense code-domain NOMA; regular low-dense spreading matrix

Subjects: Mobile radio systems; Algebra; Multiple access communication