6 problems

Let the rate-$1/2$ code family constructed by the authors of BSGY24 have block dimension $k$ and random-access expectation measured by the relevant quantity $T(k)$. BSGY rate-1/2 c…

Let $T_f$ be the frame duration and $T_v$ the vulnerable-period duration, and define … as the number of disjoint vulnerable periods within one frame. For an unresolvable collision…

Let MSRA denote Multi-sequence Spreading Random Access, and consider the associated multiple-measurement-vector (MMV) problem for activity detection. A well-conditioned MMV problem…

Let $K_a$ be the number of active users, $K_\text{tot}$ the number of potentially active users, and $L$ the signal dimension in the covariance-based activity-detection problem. A l…

In a single-antenna unsourced random-access model, let $K_a$ denote the number of active users, $K_\text{tot}$ the number of potentially active users, and $L$ the required signal d…

Low-complexity ML scaling-law conjecture. The low-complexity approximated ML algorithm achieves the same scaling law as the rigorously analyzed NNLS and constrained ML methods, nam…