Chao Qi, Xihua University, China; Minquan Cheng, Guangxi Normal University, China; Xianhua Niu, Xihua University, China; Bin Dai, Southwest Jiaotong University, China
Session:
Coded Caching: Privacy and Security
Track:
14: Secure Communication and Computation
Location:
Ypsilon IV-V-VI
Presentation Time:
Wed, 10 Jul, 10:30 - 10:50
Session Chair:
Daniela Tuninetti, University of Illinois Chicago
Abstract
This paper investigates the file and demand private coded caching system, which ensures that each user learns no information about other users' demands and non-demanded files. By proposing the innovative multi-layered coded caching schemes, this study significantly improves the achievable memory-load tradeoff compared to baseline caching schemes designed by the optimal file private scheme and demand private scheme. In particular, the proposed schemes increase the quantity of achievable memory-load points, markedly reduce the delivery load at low memory regime, and attain a tighter minimal-rate point (M =N(K-1), R = 1) than the baseline schemes.