Results 1 to 10 of about 838 (226)

Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis [PDF]

Entropy, 2021
The idea behind network caching is to reduce network traffic during peak hours via transmitting frequently-requested content items to end users during off-peak hours.
Behrouz Zolfaghari, Vikrant Singh, Brijesh Kumar Rai, Khodakhast Bibak, Takeshi Koshiba   +4 more
doaj   +2 more sources

Coded Caching for Broadcast Networks with User Cooperation [PDF]

Entropy, 2022
Caching technique is a promising approach to reduce the heavy traffic load and improve user latency experience for the Internet of Things (IoT). In this paper, by exploiting edge cache resources and communication opportunities in device-to-device (D2D ...
Zhenhao Huang, Jiahui Chen, Xiaowen You, Shuai Ma, Youlong Wu   +4 more
doaj   +2 more sources

Optimal Linear Error Correcting Delivery Schemes for Two Optimal Coded Caching Schemes [PDF]

Entropy, 2020
For coded caching problems with small buffer sizes and the number of users no less than the amount of files in the server, an optimal delivery scheme was proposed by Chen, Fan, and Letaief in 2016. This scheme is referred to as the CFL scheme.
Nujoom Sageer Karat, Anoop Thomas, Balaji Sundar Rajan   +2 more
doaj   +2 more sources

Fundamental Limits of Coded Caching in Request-Robust D2D Communication Networks [PDF]

Entropy
D2D coded caching, originally introduced by Ji, Caire, and Molisch, significantly improves communication efficiency by applying the multi-cast technology proposed by Maddah-Ali and Niesen to the D2D network.
Wuqu Wang, Zhe Tao, Nan Liu, Wei Kang
doaj   +2 more sources

Improving Placement Delivery Array Coded Caching Schemes With Coded Placement

IEEE Access, 2020
Coded caching schemes with low subpacketization and small transmission rate are desirable in practice due to the requirement of low implementation complexity and efficiency of transmission. Placement delivery arrays (PDA in short) can be used to generate
Mingming Zhang, Minquan Cheng, Xi Zhong   +2 more
exaly   +3 more sources

Centralized Hierarchical Coded Caching Scheme for Two-Layer Network [PDF]

Entropy
This paper considers a two-layer hierarchical network, where a server containing N files is connected to K1 mirrors and each mirror is connected to K2 users. Each mirror and each user has a cache memory of size M1 and M2 files, respectively.
Kun Zhao, Jinyu Wang, Minquan Cheng
doaj   +2 more sources

Multi-User PIR with Cyclic Wraparound Multi-Access Caches [PDF]

Entropy, 2023
We consider the problem of multi-access cache-aided multi-user Private Information Retrieval (MACAMuPIR) with cyclic wraparound cache access. In MACAMuPIR, several files are replicated across multiple servers.
Kanishak Vaidya, Balaji Sundar Rajan
doaj   +2 more sources

Security, Privacy, and Linear Function Retrieval in Combinatorial Multi-Access Coded Caching with Private Caches [PDF]

Entropy
We consider combinatorial multi-access coded caching with private caches, where users are connected to two types of caches: private caches and multi-access caches.
Mallikharjuna Chinnapadamala, B. Sundar Rajan   +1 more
doaj   +2 more sources

Combination Network with Multiaccess Caching [PDF]

Entropy
In the traditional (H,r,M,N) combination network, a central server storing N files communicates with K=(Hr) users through H cache-less relays. Each user has a local cache of size M files and is connected to a distinct subset of r relays.
Bowen Zheng, Yifei Huang, Dianhua Wu
doaj   +2 more sources

Towards Characterizing the Download Cost of Cache-Aided Private Updating [PDF]

Entropy
We consider the problem of privately updating a message out of K messages from N replicated and non-colluding databases where a user has an outdated version of the message W^θ of length L bits that differ from the current version Wθ in at most f bits ...
Bryttany Stark, Ahmed Arafa, Karim Banawan   +2 more
doaj   +2 more sources