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In this paper, we study shared cache coded caching (SC-CC): a set of caches serves a larger set of users; each user access one cache, and a cache may serve many users. For this problem, under uncoded placement, Parrinello, \"Unsal, and Elia…

Information Theory · Computer Science 2023-01-02 Niladri Das , B. Sundar Rajan

A centralized coded caching scheme has been proposed by Maddah-Ali and Niesen to reduce the worst-case load of a network consisting of a server with access to N files and connected through a shared link to K users, each equipped with a…

Information Theory · Computer Science 2017-07-25 Sian Jin , Ying Cui , Hui Liu , Giuseppe Caire

The capacity of caching networks has received considerable attention in the past few years. A particularly studied setting is the shared link caching network, in which a single source with access to a file library communicates with multiple…

Information Theory · Computer Science 2015-11-25 Mingyue Ji , Antonia Tulino , Jaime Llorca , Giuseppe Caire

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…

Information Theory · Computer Science 2017-10-16 Qifa Yan , Xiaohu Tang , Qingchun Chen

Optimal delivery scheme for coded caching problems with small buffer sizes and the number of users no less than the amount of files in the server was proposed by Chen, Fan and Letaief ["Fundamental limits of caching: improved bounds for…

Information Theory · Computer Science 2018-01-09 Nujoom Sageer Karat , Anoop Thomas , B. Sundar Rajan

We address a centralized caching problem with unequal cache sizes. We consider a system with a server of files connected through a shared error-free link to a group of cache-enabled users where one subgroup has a larger cache size than the…

Information Theory · Computer Science 2018-05-16 Behzad Asadi , Lawrence Ong , Sarah J. Johnson

Coded Caching, proposed by Maddah-Ali and Niesen (MAN), has the potential to reduce network traffic by pre-storing content in the users' local memories when the network is underutilized and transmitting coded multicast messages that…

Information Theory · Computer Science 2021-04-14 Kai Wan , Hua Sun , Mingyue Ji , Daniela Tuninetti , Giuseppe Caire

Coded caching is an efficient way to reduce network traffic congestion during peak hours by storing some content at the user's local cache memory without knowledge of later demands. The goal of coded caching design is to minimize the…

Information Theory · Computer Science 2020-05-05 Minquan Cheng , Dequan Liang , Ruizhong Wei

The centralized coded caching scheme is a technique proposed by Maddah-Ali and Niesen as a solution to reduce the network burden in peak times in a wireless system. Later Yan et al. reformulated the problem as designing a corresponding…

Information Theory · Computer Science 2016-08-16 Chong Shangguan , Yiwei Zhang , Gennian Ge

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…

Information Theory · Computer Science 2025-10-28 Minquan Cheng , Yifei Huang , Youlong Wu , Jinyan Wang

The capacity of caching networks has received considerable attention in the past few years. A particularly studied setting is the case of a single server (e.g., a base station) and multiple users, each of which caches segments of files in a…

Information Theory · Computer Science 2014-10-30 Mingyue Ji , Antonia M. Tulino , Jaime Llorca , Giuseppe Caire

The coded caching scheme proposed by Maddah-Ali and Niesen considers the delivery of files in a given content library to users through a deterministic error-free network where a common multicast message is sent to all users at a fixed rate,…

Information Theory · Computer Science 2020-05-29 Mozhgan Bayat , Ratheesh K. Mungara , Giuseppe Caire

In the coded caching problem, as originally formulated by Maddah-Ali and Niesen, a server communicates via a noiseless shared broadcast link to multiple users that have local storage capability. In order for a user to decode its demanded…

Information Theory · Computer Science 2022-05-09 Kai Wan , Hua Sun , Mingyue Ji , Daniela Tuninetti , Giuseppe Caire

We consider the canonical {\em shared link network} formed by a source node, hosting a library of $m$ information messages (files), connected via a noiseless common link to $n$ destination nodes (users), each with a cache of size M files.…

Information Theory · Computer Science 2015-02-12 Mingyue Ji , Antonia M. Tulino , Jaime Llorca , 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…

Information Theory · Computer Science 2019-03-29 Seyed Mohammad Asghari , Yi Ouyang , Ashutosh Nayyar , A. Salman Avestimehr

Maddah-Ali and Niesen, in a seminal paper, introduced the notion of coded caching. The exact nature of the fundamental limits in this context has remained elusive even as several approximate characterizations have been found. A new optimal…

Information Theory · Computer Science 2019-05-22 Vijith Kumar K P , Brijesh Kumar Rai , Tony Jacob

Device-to-device (D2D) communication is one of the most promising techniques for future wireless cellular communication systems. This paper considers coded caching in a partially cooperative wireless D2D network, where only a subset of…

Information Theory · Computer Science 2025-09-03 Rashid Ummer N. T. , K. K. Krishnan Namboodiri , B. Sundar Rajan

Coded caching has been widely used in the wireless network for shifting the some transmissions during the peak traffic times to the off-peak traffic times. Multi-server coded caching, which can share responsibility for the total amount of…

Information Theory · Computer Science 2018-06-28 Minquan Cheng , Qiaoling Zhang , Jing Jiang , Reizhong Wei

This work considers the coded caching problem with shared caches, where users share the caches, and each user gets access only to one cache. The user-to-cache association is assumed to be known at the server during the placement phase. We…

Information Theory · Computer Science 2022-01-28 Elizabath Peter , K. K. Krishnan Namboodiri , B. Sundar Rajan

Coded caching is a recently proposed technique that achieves significant performance gains for cache networks compared to uncoded caching schemes. However, this substantial coding gain is attained at the cost of large delivery delay, which…

Information Theory · Computer Science 2016-11-15 Urs Niesen , Mohammad Ali Maddah-Ali
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