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cs.IT2024
Type-Based Unsourced Multiple Access
Khac-Hoang Ngo, Deekshith Pathayappilly Krishnan, Kaan Okumus +2
We generalize the type-based multiple access framework proposed by Mergen and Tong (2006) to the case of unsourced multiple access. In the proposed framework, each device tracks th…
cs.IT2024
Timely Status Updates in Slotted ALOHA Networks With Energy Harvesting
Khac-Hoang Ngo, Giuseppe Durisi, Andrea Munari +2
We investigate the age of information (AoI) in a scenario where energy-harvesting devices send status updates to a gateway following the slotted ALOHA protocol and receive no feedb…
cs.LG2024
Secure Aggregation is Not Private Against Membership Inference Attacks
Khac-Hoang Ngo, Johan Östman, Giuseppe Durisi +1
Secure aggregation (SecAgg) is a commonly-used privacy-enhancing mechanism in federated learning, affording the server access only to the aggregate of model updates while safeguard…