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Coded caching is an effective technique to decongest the amount of traffic in the backhaul link. In such a scheme, each file hosted in the server is divided into a number of packets to pursue a low transmission rate based on the delicate…

信息论 · 计算机科学 2022-07-21 Xianzhang Wu , Minquan Cheng , Li Chen , Congduan Li , Zifan Shi

This work considers the multi-access caching system proposed by Hachem et al., where each user has access to L neighboring caches in a cyclic wrap-around fashion. We first propose a placement strategy called the consecutive cyclic…

信息论 · 计算机科学 2022-09-08 Jinyu Wang , Minquan Cheng , Youlong Wu

Network based on distributed caching of content is a new architecture to alleviate the ongoing explosive demands for rate of multi-media traffic. In caching networks, coded caching is a recently proposed technique that achieves significant…

信息论 · 计算机科学 2017-10-16 Qifa Yan , Xiaohu Tang , Qingchun Chen

Coded caching scheme recently has become quite popular in the wireless network due to its effectively reducing the transmission amount (denote such an amount by $R$) during peak traffic times. However to realize a coded caching scheme, each…

信息论 · 计算机科学 2018-06-26 Minquan Cheng , Jing Jiang , Qifa Yan , Xiaohu Tang

In this work, we study coded placement in caching systems where the users have unequal cache sizes and demonstrate its performance advantage. In particular, we propose a caching scheme with coded placement for three-user systems that…

信息论 · 计算机科学 2018-11-12 Abdelrahman M. Ibrahim , Ahmed A. Zewail , Aylin Yener

We consider the cache-aided multiple-input single-output (MISO) broadcast channel, which consists of a server with $L$ antennas and $K$ single-antenna users, where the server contains $N$ files of equal length and each user is equipped with…

信息论 · 计算机科学 2022-03-04 Ting Yang , Kai Wan , Minquan Cheng , Giuseppe Caire

Despite significant progress in the caching literature concerning the worst case and uniform average case regimes, the algorithms for caching with nonuniform demands are still at a basic stage and mostly rely on simple grouping and…

信息论 · 计算机科学 2018-02-01 Pierre Quinton , Saeid Sahraei , Michael Gastpar

Caching is an efficient way to reduce network traffic congestion during peak hours, by storing some content at the user's local cache memory, even without knowledge of user's later demands. Maddah-Ali and Niesen proposed a two-phase…

信息论 · 计算机科学 2020-01-15 Kai Wan , Daniela Tuninetti , Pablo Piantanida

We consider multi-access coded caching problem introduced by Hachem et.al., where each user has access to $L$ neighboring caches in a cyclic wrap-around fashion. We focus on the deterministic schemes for a specific class of multi-access…

信息论 · 计算机科学 2021-02-26 Shanuja Sasi , B. Sundar Rajan

Coded caching has the potential to greatly reduce network traffic by leveraging the cheap and abundant storage available in end-user devices so as to create multicast opportunities in the delivery phase. In the seminal work by Maddah-Ali…

信息论 · 计算机科学 2020-01-13 Kai Wan , Hua Sun , Mingyue Ji , Daniela Tuninetti , Giuseppe Caire

A decentralized coded caching scheme based on independent random content placement has been proposed by Maddah-Ali and Niesen, and has been shown to achieve an order-optimal memory-load tradeoff when the file size goes to infinity. It was…

信息论 · 计算机科学 2017-01-12 Sian Jin , Ying Cui , Hui Liu , Giuseppe Caire

The tradeoff between the user's memory size and the worst-case download time in the $(H,r,M,N)$ combination network is studied, where a central server communicates with $K$ users through $H$ immediate relays, and each user has local cache…

信息论 · 计算机科学 2018-03-01 Kai Wan , Daniela Tuninetti , Mingyue Ji , Pablo Piantanida

The coded caching scheme proposed by Maddah-Ali and Niesen (MAN) transmits coded multicast messages to users equipped with caches and it is known to be optimal within a constant factor. This work extends this caching scheme to two-hop relay…

信息论 · 计算机科学 2019-03-15 Mozhgan Bayat , Kai Wan , Giuseppe Caire

Coded caching can significantly reduce the communication bandwidth requirement for satisfying users' demands by utilizing the multicasting gain among multiple users. Most existing works assume that the users follow the prescriptions for…

信息论 · 计算机科学 2019-03-29 Seyed Mohammad Asghari , Yi Ouyang , Ashutosh Nayyar , A. Salman Avestimehr

The multi-antenna coded caching problem, where the server having $L$ transmit antennas communicating to $K$ users through a wireless broadcast link, is addressed. In the problem setting, the server has a library of $N$ files, and each user…

信息论 · 计算机科学 2022-01-27 K. K. Krishnan Namboodiri , Elizabath Peter , B. Sundar Rajan

Caching is an efficient way to reduce network traffic congestion during peak hours by storing some content at the users' local caches. For the shared-link network with end-user-caches, Maddah-Ali and Niesen proposed a two-phase coded…

信息论 · 计算机科学 2021-11-08 Kai Wan , Daniela Tuninetti , Mingyue Ji , Pablo Piantanida

Caching is popular technique in content delivery networks that allows for reductions in transmission rates from the content-hosting server to the end users. Coded caching is a generalization of conventional caching that considers the…

信息论 · 计算机科学 2016-07-28 Li Tang , Aditya Ramamoorthy

Coded caching is a promising technique to create coded multicast opportunities for cache-aided networks. By splitting each file into $F$ equal packets (i.e., the subpacketization level $F$) and letting each user cache a set of packets, the…

信息论 · 计算机科学 2025-10-28 Minquan Cheng , Yifei Huang , Youlong Wu , Jinyan Wang

Information theoretic analysis of a coded caching system is considered, in which a server with a database of N equal-size files, each F bits long, serves K users. Each user is assumed to have a local cache that can store M files, i.e.,…

信息论 · 计算机科学 2016-05-09 Mohammad Mohammadi Amiri , Qianqian Yang , Deniz Gunduz

Caching is an efficient way to reduce peak hour network traffic congestion by storing some contents at the user's cache without knowledge of later demands. Coded caching strategy was originally proposed by Maddah-Ali and Niesen to give an…

信息论 · 计算机科学 2018-03-19 Kai Wan , Daniela Tuninetti , Pablo Piantanida , Mingyue Ji