Author

Wei Kang

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Preprint Oct 2026

Secure D2D Coded Caching under Radius-Limited Connectivity via Lifting

Secure device-to-device (D2D) caching requires users to generate delivery signals from their own caches and to recover their requested files without learning the other files. We construct schemes that meet both requirements when communication is limited to nearby users. The network consists of $K$ users on a cycle, a l...

Han Fang, Nan Liu, Wei Kang · 0 citations

Preprint Oct 2026

Order-Optimal Coded Caching With File and Demand Privacy

We study coded caching with joint file and demand privacy: each user recovers its requested file while learning nothing about the remaining files and the other users'requests jointly. Let $N$ and $K$ be the numbers of files and users, and let $M$ and $R$ denote the cache memory and delivery rate, both normalized by the...

Han Fang, Nan Liu, Wei Kang · 0 citations

Preprint Aug 2026

Polar Code Based Federated Learning: Convergence Analysis and Resource Allocation

A cross layer polar code based FL scheme that leverages the unequal error protection (UEP) property of polar codes under finite block lengths and selectively protects more significant quantization bits, thereby mitigating the detrimental effects of channel noise is proposed.

Han Xiao, Wei Kang, Nan Liu · 0 citations