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Caching is a promising solution to satisfy the ever increasing demands for the multi-media traffics. In caching networks, coded caching is a recently proposed technique that achieves significant performance gains over the uncoded caching…

信息论 · 计算机科学 2017-10-23 Qifa Yan , Minquan Cheng , Xiaohu Tang , Qingchun Chen

This article introduces a novel family of decentralised caching policies, applicable to wireless networks with finite storage at the edge-nodes (stations). These policies are based on the Least-Recently-Used replacement principle, and are,…

性能 · 计算机科学 2016-06-22 Anastasios Giovanidis , Apostolos Avranas

Caching is an efficient way to reduce peak-hour network traffic congestion by storing some contents at user's local cache without knowledge of later demands. Maddah-Ali and Niesen initiated a fundamental study of caching systems; they…

信息论 · 计算机科学 2015-11-10 Kai Wan , Daniela Tuninetti , Pablo Piantanida

Caching at the wireless edge can be used to keep up with the increasing demand for high-definition wireless video streaming. By prefetching popular content into memory at wireless access points or end-user devices, requests can be served…

信息论 · 计算机科学 2019-12-03 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

In this paper, we investigate maximum distance separable (MDS) codes based group coded caching in fog radio access networks (F-RANs). The goal is to minimize the average fronthaul rate under nonuniform file popularity. Firstly, an MDS codes…

信息论 · 计算机科学 2022-06-24 Qianli Tan , Yanxiang Jiang , Fu-Chun Zheng , Mehdi Bennis , Xiaohu You

Coded caching is a technique where multicasting and coding opportunities are utilized to achieve better rate-memory tradeoff in cached networks. A crucial parameter in coded caching is subpacketization, which is the number of parts a file…

信息论 · 计算机科学 2022-04-06 V R Aravind , Pradeep Kiran Sarvepalli , Andrew Thangaraj

We study hotplug coded caching in combinatorial multi-access networks, which generalizes existing hotplug coded caching models by allowing users to access multiple caches, while only a subset of caches is online during the delivery phase.…

信息论 · 计算机科学 2026-01-16 Dhruv Pratap Singh , Anjana A. Mahesh , B. Sundar Rajan

Storage systems often rely on multiple copies of the same compressed data, enabling recovery in case of binary data errors, of course, at the expense of a higher storage cost. In this paper we show that a wiser method of duplication entails…

多媒体 · 计算机科学 2019-02-08 Yehuda Dar , Alfred M. Bruckstein

A major concern in cloud/edge storage systems is serving a large number of users simultaneously. The service rate region is introduced recently as an important performance metric for coded distributed systems, which is defined as the set of…

信息论 · 计算机科学 2020-10-27 Fatemeh Kazemi , Sascha Kurz , Emina Soljanin , Alex Sprintson

We present Mirror-Optimized Storage Tiering (MOST), a novel tiering-based approach optimized for modern storage hierarchies. The key idea of MOST is to combine the load balancing advantages of mirroring with the space-efficiency advantages…

操作系统 · 计算机科学 2025-12-04 Kaiwei Tu , Kan Wu , Andrea C. Arpaci-Dusseau , Remzi H. Arpaci-Dusseau

We consider a coded caching problem with multiple demands under a privacy constraint. In this problem, a server with access to \(N\) files serves \(K\) users over a shared link, and each user requests \(L\) distinct files. The privacy…

信息论 · 计算机科学 2026-04-17 Qinyi Lu , Nan Liu , Wei Kang

This paper investigates the coded caching problem in a multi-access multiple-input single-output (MAMISO) network with the combinatorial topology. The considered system consists of a server containing $N$ files, $\Lambda$ cache nodes, and…

信息论 · 计算机科学 2026-01-19 Siying Luo , Youlong Wu , Mingming Zhang , Minquan Cheng , Dianhua Wu

This paper considers the problem of simultaneously communicating two messages, a high-security message and a low-security message, to a legitimate receiver, referred to as the security embedding problem. An information-theoretic formulation…

信息论 · 计算机科学 2011-02-09 Hung D. Ly , Tie Liu , Yufei Blankenship

Recently, wireless caching techniques have been studied to satisfy lower delay requirements and offload traffic from peak periods. By storing parts of the popular files at the mobile users, users can locate some of their requested files in…

信息论 · 计算机科学 2017-04-10 Yi Li , M. Cenk Gursoy , Senem Velipasalar

We investigate the coded caching scheme under heterogenous cache sizes.

信息论 · 计算机科学 2015-09-01 Sinong Wang , Wenxin Li , Xiaohua Tian , Hui Liu

Code mapping (CM) is an efficient technique for reversible data hiding (RDH) in JPEG images, which embeds data by constructing a mapping relationship between the used and unused codes in the JPEG bitstream. This study presents a new…

多媒体 · 计算机科学 2022-07-19 Yang Du , Zhaoxia Yin

Coded caching can be applied in wireless multi-antenna communications by multicast beamforming coded data chunks to carefully selected user groups and using the existing file fragments in user caches to decode the desired files at each…

信息论 · 计算机科学 2019-05-14 MohammadJavad Salehi , Antti Tölli , Seyed Pooya Shariatpanahi , Jarkko Kaleva

A location-aware multi-antenna coded caching scheme is proposed for applications with location-dependent data requests, such as wireless immersive experience, where users are immersed in a three-dimensional virtual world. The wireless…

信息论 · 计算机科学 2023-07-11 Hamidreza Bakhshzad Mahmoodi , MohammadJavad Salehi , Antti Tolli

Heterogeneous Information Network (HIN) embedding refers to the low-dimensional projections of the HIN nodes that preserve the HIN structure and semantics. HIN embedding has emerged as a promising research field for network analysis as it…

机器学习 · 计算机科学 2021-08-10 Rayyan Ahmad Khan , Martin Kleinsteuber

Similarity-preserving hashing is a widely-used method for nearest neighbour search in large-scale image retrieval tasks. There has been considerable research on generating efficient image representation via the deep-network-based hashing…

计算机视觉与模式识别 · 计算机科学 2017-10-20 Hanjiang Lai , Yan Pan