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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…

Information Theory · Computer Science 2020-01-13 Kai Wan , Hua Sun , Mingyue Ji , Daniela Tuninetti , Giuseppe Caire

In this work, a distributed server system composed of multiple servers that holds some coded files and multiple users that are interested in retrieving the linear functions of the files is investigated, where the servers are robust, blind…

Information Theory · Computer Science 2024-07-25 Qifa Yan , Xiaohu Tang , Zhengchun Zhou

Coded Caching is an efficient technique to reduce peak hour network traffic. One limitation of known coded caching schemes is that the demands of all users are revealed to their peers in the delivery phase. Schemes that assure privacy for…

Information Theory · Computer Science 2021-02-04 K. K. Krishnan Namboodiri , B. Sundar Rajan

This work considers the combinatorial multi-access coded caching problem introduced in the recent work by Muralidhar \textit{et al.} [P. N. Muralidhar, D. Katyal, and B. S. Rajan, ``Maddah-Ali-Niesen scheme for multi-access coded caching,''…

Information Theory · Computer Science 2024-01-18 K. K. Krishnan Namboodiri , B. Sundar Rajan

This paper studies a multiaccess coded caching (MACC) where the connectivity topology between the users and the caches can be described by a class of combinatorial designs. Our model includes as special cases several MACC topologies…

Information Theory · Computer Science 2023-11-01 Minquan Cheng , Kai Wan , Petros Elia , Giuseppe Caire

Caching at mobile devices can facilitate device-to-device (D2D) communications, which may significantly improve spectrum efficiency and alleviate the heavy burden on backhaul links. However, most previous works ignored user mobility, thus…

Information Theory · Computer Science 2017-03-07 Rui Wang , Jun Zhang , S. H. Song , Khaled B. Letaief

Multi-antenna coded caching combines a global caching gain, proportional to the total cache size in the network, with an additional spatial multiplexing gain that stems from multiple transmitting antennas. However, classic centralized coded…

Information Theory · Computer Science 2021-11-16 MohammadJavad Salehi , Emanuele Parrinello , Hamidreza Bakhshzad Mahmoodi , Antti Tolli

We consider the standard broadcast setup with a single server broadcasting information to a number of clients, each of which contains local storage (called cache) of some size, which can store some parts of the available files at the…

Information Theory · Computer Science 2023-02-08 Shailja Agrawal , K V Sushena Sree , Prasad Krishnan , Abhinav Vaishya , Srikar Kale

Coded multicasting has been shown to improve the caching performance of content delivery networks with multiple caches downstream of a common multicast link. However, the schemes that have been shown to achieve order-optimal perfor- mance…

Information Theory · Computer Science 2015-11-25 Mingyue Ji , Karthikeyan Shanmugam , Giuseppe Vettigli , Jaime Llorca , Antonia M. Tulino , Giuseppe Caire

In this paper, we consider multiple cache-enabled end-users connected to multiple transmitters through a linear network. We also prevent a totally passive eavesdropper, who sniffs the packets in the delivery phase, from obtaining any…

Information Theory · Computer Science 2022-11-29 Mohammad Javad Sojdeh , Mehdi Letafati , Seyed Pooya Shariatpanahi , Babak Hossein Khalaj

Li {\it et al}. introduced coded distributed computing (CDC) scheme to reduce the communication load in general distributed computing frameworks such as MapReduce. They also proposed cascaded CDC schemes where each output function is…

Information Theory · Computer Science 2021-11-25 Jing Jiang , Lingxiao Qu

We consider a server connected to $L$ users over a shared finite capacity link. Each user is equipped with a cache. File requests at the users are generated as independent Poisson processes according to a popularity profile from a library…

Performance · Computer Science 2018-04-30 Mahadesh Panju , Ramkumar Raghu , Vinod Sharma , Rajesh Ramachandran

In the problem of cache-aided multiuser private information retrieval (MuPIR), a set of $K_{\rm u}$ cache-equipped users wish to privately download a set of messages from $N$ distributed databases each holding a library of $K$ messages. The…

Information Theory · Computer Science 2021-02-05 Xiang Zhang , Kai Wan , Hua Sun , Mingyue Ji , Giuseppe Caire

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

Under the paradigm of caching, partial data is delivered before the actual requests of users are known. In this paper, this problem is modeled as a canonical distributed source coding problem with side information, where the side…

Information Theory · Computer Science 2016-11-17 Chien-Yi Wang , Sung Hoon Lim , Michael Gastpar

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…

Information Theory · Computer Science 2022-03-04 Ting Yang , Kai Wan , Minquan Cheng , Giuseppe Caire

Coded Caching is a promising solution to reduce the peak traffic in broadcast networks by prefetching the popular content close to end users and using coded transmissions. One of the chief issues of most coded caching schemes in literature…

Information Theory · Computer Science 2019-02-26 Hari Hara Suthan Chittoor , Bhavana M , Prasad Krishnan

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

Next-generation mobile networks are expected to facilitate fast AI model downloading to end users. By caching models on edge servers, mobile networks can deliver models to end users with low latency, resulting in a paradigm of edge model…

Networking and Internet Architecture · Computer Science 2026-05-21 Guanqiao Qu , Zheng Lin , Qian Chen , Jian Li , Fangming Liu , Xianhao Chen , Kaibin Huang

We consider a variant of the coded caching problem where users connect to two types of caches, called private caches and access caches. The problem setting consists of a server having a library of files and a set of access caches. Every…

Information Theory · Computer Science 2024-08-26 Dhruv Pratap Singh , Anjana A. Mahesh , B. Sundar Rajan