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- W4285294039 abstract "This letter studies coded caching with <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>file and demand privacy</i> (f&d-privacy) which guarantees that each user learns no information neither about other users’ demands, nor about non-demanded files. First, we prove that an <italic xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>f&d-private</i> coded caching system can also resist the attacks of an external eavesdropper. We then characterize the exact memory-rate trade-off for <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$N = K = 2$ </tex-math></inline-formula> . Finally, we propose coded caching schemes to achieve the minimal-memory point <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$(M=1,R=K)$ </tex-math></inline-formula> , which is tight if <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$Ngeq 2K$ </tex-math></inline-formula> , and the minimal-rate point <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$(M=N(K-1)+1,R=1)$ </tex-math></inline-formula> on the memory-rate trade-off." @default.
- W4285294039 created "2022-07-14" @default.
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- W4285294039 date "2022-09-01" @default.
- W4285294039 modified "2023-09-27" @default.
- W4285294039 title "Coded Caching With File and Demand Privacy" @default.
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- W4285294039 doi "https://doi.org/10.1109/lcomm.2022.3184765" @default.
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