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Coded caching (CC) schemes exploit the cumulative cache memory of network users, outperforming traditional uncoded schemes where cache contents are only used locally. Interestingly, this CC gain can also be combined with the spatial…

Information Theory · Computer Science 2023-12-08 Kagan Akcay , MohammadJavad Salehi , Antti Tölli , Giuseppe Caire

Caching of popular content during off-peak hours is a strategy to reduce network loads during peak hours. Recent work has shown significant benefits of designing such caching strategies not only to deliver part of the content locally, but…

Information Theory · Computer Science 2016-06-14 Nikhil Karamchandani , Urs Niesen , Mohammad Ali Maddah-Ali , Suhas Diggavi

Classical coded caching setting avails each user to have one dedicated cache. This is generalized to a more general shared cache scheme and the exact expression for the worst case rate was derived in [E. Parrinello, A. Unsal, P. Elia,…

Information Theory · Computer Science 2019-01-11 Nujoom Sageer Karat , Spandan Dey , Anoop Thomas , B. Sundar Rajan

A cache-aided broadcast network is studied, in which a server delivers contents to a group of receivers over a packet erasure broadcast channel (BC). The receivers are divided into two sets with regards to their channel qualities: the weak…

Information Theory · Computer Science 2017-06-02 Mohammad Mohammadi Amiri , Deniz Gunduz

Content-Centric Networking (CCN) offers a novel architectural paradigm that seeks to address the inherent limitations of the prevailing Internet Protocol (IP)-based networking model. In contrast to the host-centric communication approach of…

Networking and Internet Architecture · Computer Science 2025-08-05 Azadeh Sadat Miraftab , Ahmadreza Montazerolghaem , Behrad Mahboobi

We consider the classical coded caching problem as defined by Maddah-Ali and Niesen, where a server with a library of $N$ files of equal size is connected to $K$ users via a shared error-free link. Each user is equipped with a cache with…

Information Theory · Computer Science 2018-07-10 Sian Jin , Ying Cui , Hui Liu , Giuseppe Caire

Recently coded caching has emerged as a promising means to handle continuously increasing wireless traffic. However, coded caching requires users to cooperate in order to minimize the overall transmission rate. How users with heterogeneous…

Information Theory · Computer Science 2019-12-02 Yawei Lu , Wei Chen , H. Vincent Poor

Coded caching techniques have received significant attention lately due to their provable gains in reducing the cost of data delivery in wireless networks. These gains, however, have only been demonstrated under the assumption of a free…

Information Theory · Computer Science 2020-03-26 Yousef AlHassoun , Faisal Alotaibi , Aly El Gamal , Hesham El Gamal

Cache-aided coded content delivery is studied for devices with diverse quality-of-service (QoS) requirements, specified by a different average distortion target. The network consists of a server holding a database of independent contents,…

Information Theory · Computer Science 2018-02-08 Qianqian Yang , Deniz Gündüz

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…

Information Theory · Computer Science 2023-07-11 Hamidreza Bakhshzad Mahmoodi , MohammadJavad Salehi , Antti Tolli

We consider load balancing problem in a cache network consisting of storage-enabled servers forming a distributed content delivery scenario. Previously proposed load balancing solutions cannot perfectly balance out requests among servers,…

Information Theory · Computer Science 2019-08-06 Mahdi Jafari Siavoshani , Farzad Parvaresh , Ali Pourmiri , Seyed Pooya Shariatpanahi

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

Cache-aided coded multicast leverages side information at wireless edge caches to efficiently serve multiple unicast demands via common multicast transmissions, leading to load reductions that are proportional to the aggregate cache size.…

Information Theory · Computer Science 2018-06-14 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

Coded caching is a recently proposed technique for dealing with large scale content distribution over the Internet. As in conventional caching, it leverages the presence of local caches at the end users. However, it considers coding in the…

Information Theory · Computer Science 2016-05-06 Li Tang , Aditya Ramamoorthy

Video content delivery at the wireless edge continues to be challenged by insufficient bandwidth and highly dynamic user behavior which affects both effective throughput and latency. Caching at the network edge and coded transmissions have…

Networking and Internet Architecture · Computer Science 2020-01-22 Lalhruaizela Chhangte , Emanuele Viterbo , D Manjunath , Nikhil Karamchandani

In cache-aided networks, the server populates the cache memories at the users during low-traffic periods, in order to reduce the delivery load during peak-traffic hours. In turn, there exists a fundamental trade-off between the delivery…

Information Theory · Computer Science 2019-03-15 Abdelrahman M. Ibrahim , Ahmed A. Zewail , Aylin Yener

Caching is a technique to reduce the communication load in peak hours by prefetching contents during off-peak hours. An information-theoretic framework for coded caching was introduced by Maddah-Ali and Niesen in a recent work, where it was…

Information Theory · Computer Science 2021-09-07 Shuo Shao , Jesús Gómez-Vilardebó , Kai Zhang , Chao Tian

Caching is a commonly used technique in content-delivery networks which aims to deliver information from hosting servers to users in the most efficient way. In 2014, Maddah-Ali and Niessen formulated caching into a formal information…

Information Theory · Computer Science 2020-02-27 Tai Do Duc , Shuo Shao , Chaoping Xing

The correlation among the content distributed across a cache-aided broadcast network can be exploited to reduce the delivery load on the shared wireless link. This paper considers a two-user three-file network with correlated content, and…

Information Theory · Computer Science 2017-12-06 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

Coded caching is a technique that leverages locally cached contents at the users to reduce the network's peak-time communication load. Coded caching achieves significant performance gains compared to uncoded caching schemes and is thus a…

Information Theory · Computer Science 2022-02-04 Yinbin Ma , Daniela Tuninetti