Fundamental limits of private information retrieval with unknown cache prefetching

H Seo, H Lee, W Choi - IEEE Transactions on Communications, 2021 - ieeexplore.ieee.org
The fundamental limits of private information retrieval (PIR) with unknown cache prefetching
at the user are investigated in this paper. To this end, a novel random linear combination …

Private and fresh real-time status updating

H Seo, H Lee, K Son, W Choi - IEEE Communications Letters, 2021 - ieeexplore.ieee.org
The freshness and privateness of information in a real-time status updating is mainly
investigated in this letter. First, an information freshness and privateness tradeoff is …