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cs.IT2026
Optimal Communication Rate of Secure Aggregation over Ring Networks with Pairwise Keys
Xiang Zhang, Han Yu, Zhou Li +2
Information-theoretic topological secure aggregation (TSA)\cite{zhang2026information_regular} enables distributed users to compute neighborhood sums over arbitrary networks without…
cs.IT2026
Reducing Subpacketization in Device-to-Device Coded Caching via Heterogeneous File Splitting
Xiang Zhang, Giuseppe Caire, Mingyue Ji
The packet type (PT)-based framework~\cite{zhang2026taming} provides a systematic and principled approach to designing device-to-device (D2D) coded caching schemes that achieve red…
cs.IT2026
Taming Subpacketization without Sacrificing Communication: A Packet Type-based Framework for D2D Coded Caching
Xiang Zhang, Giuseppe Caire, Mingyue Ji
Finite-length design is essential for making coded caching practical, as the optimal communication gains of existing schemes often require prohibitively large subpacketization. Thi…