Work

Identification via Gaussian Multiple Access Channels in the Presence of Feedback

Year: 2024
Type: conference-paper
Abstract: We investigate message identification over a K-sender Gaussian multiple access channel (K-GMAC). Unlike conventional Shannon transmission codes, the size of randomized identification (ID) codes experiences a doubly exponential growth in the code length. Improvements in the ID approach can be attained through additional resources such as quantum entanglement, common randomness (CR), and feedback. It has been demonstrated that an infinite capacity can be attained for a single-user Gaussian channel with noiseless feedback, irrespective of the chosen rate scaling. We establish the capacity region of both the K-sender Gaussian multiple access channel (K-GMAC) and the K-sender state-dependent Gaussian multiple access channel (K-SD-GMAC) when strictly causal noiseless feedback is available.
Language: English
Open Access status: green
OpenAlex ID: W4405908542
FWCI: 0.443
Cites: 40
Cited by: 1
Related to: 10