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We propose a new caching scheme where linear combinations of the file segments are cached at the users, for the cases where the number of files is no greater than the number of users. When a user requests a certain file in the delivery…

Information Theory · Computer Science 2016-05-02 Chao Tian , Jun Chen

We consider the problem of delivering content cached in a wireless network of n nodes randomly located on a square of area n. The network performance is described by the n2^n-dimensional caching capacity region of the wireless network. We…

Information Theory · Computer Science 2012-09-28 Urs Niesen , Devavrat Shah , Gregory Wornell

Modeling distributed computing in a way enabling the use of formal methods is a challenge that has been approached from different angles, among which two techniques emerged at the turn of the century: protocol complexes, and directed…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-21 Pierre Fraigniaud , Ami Paz

The problem of content delivery in caching networks is investigated for scenarios where multiple users request identical files. Redundant user demands are likely when the file popularity distribution is highly non-uniform or the user…

Information Theory · Computer Science 2017-08-01 Seyed Ali Saberali , Hamidreza Ebrahimzadeh Saffar , Lutz Lampe , Ian Blake

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

This paper investigates a setup consisting of multiple transmitters serving multiple cache-enabled clients through a linear network, which covers both wired and wireless transmission situations. We investigate decentralized coded caching…

Information Theory · Computer Science 2021-09-15 Mohammad Mahmoudi , Mohammad Javad Sojdeh , Seyed Pooya Shariatpanahi

This paper investigates one of the fundamental issues in cache-enabled heterogeneous networks (HetNets): how many cache instances should be deployed at different base stations, in order to provide guaranteed service in a cost-effective…

Networking and Internet Architecture · Computer Science 2017-07-14 Shan Zhang , Ning Zhang , Peng Yang , Xuemin Shen

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…

Information Theory · Computer Science 2018-03-01 Kai Wan , Daniela Tuninetti , Mingyue Ji , Pablo Piantanida

We consider a distributed computing framework where the distributed nodes have different communication capabilities, motivated by the heterogeneous networks in data centers and mobile edge computing systems. Following the structure of…

Information Theory · Computer Science 2019-08-20 Nishant Shakya , Fan Li , Jinyuan Chen

This paper studies physical-layer security for a cache-enabled heterogeneous cellular network comprised of a macro base station and multiple small base stations (SBSs). We investigate a joint design on caching placement and file delivery…

Information Theory · Computer Science 2018-09-25 Tong-Xing Zheng , Hui-Ming Wang , Jinhong Yuan

Caching multimedia contents at the network edge is a key solution to decongest the amount of traffic in the backhaul link. In this paper, we extend and analyze the coded caching technique [1] in an unexplored scenario, i.e. at the edge of…

Information Theory · Computer Science 2022-05-16 Estefania Recayte

Network cache allocation and management are important aspects of the design of an Information-Centric Network (ICN), such as one based on Named Data Networking (NDN). We address the problem of optimal cache size allocation and content…

Optimization and Control · Mathematics 2021-05-13 Van Sy Mai , Stratis Ioannidis , Davide Pesavento , Lotfi Benmohamed

Collaborative edge computing (CEC) is an emerging paradigm where heterogeneous edge devices (stakeholders) collaborate to fulfill computation tasks, such as model training or video processing, by sharing communication and computation…

Networking and Internet Architecture · Computer Science 2022-05-03 Jinkun Zhang , Yuezhou Liu , Edmund Yeh

Maddah-Ali and Niesen (MAN) in 2014 showed that coded caching in single bottleneck-link broadcast networks allows serving an arbitrarily large number of cache-equipped users with a total link load (bits per unit time) that does not scale…

Information Theory · Computer Science 2019-05-27 Kai Wan , Daniela Tuninetti , Mingyue Ji , Giuseppe Caire

Next-generation communication networks are envisioned to extensively utilize storage-enabled caching units to alleviate unfavorable surges of data traffic by pro-actively storing anticipated highly popular contents across geographically…

Networking and Internet Architecture · Computer Science 2019-02-20 Alireza Sadeghi , Antonio G. Marques , Georgios B. Giannakis

Wireless information-centric networks consider storage as one of the network primitives, and propose to cache data within the network in order to improve latency and reduce bandwidth consumption. We study the throughput capacity and latency…

Networking and Internet Architecture · Computer Science 2016-11-17 Bita Azimdoost , Cedric Westphal , Hamid R. Sadjadpour

Cache-enabled coordinated mobile edge network is an emerging network architecture, wherein serving nodes located at the network edge have the capabilities of baseband signal processing and caching files at their local cache. The main goals…

Signal Processing · Electrical Eng. & Systems 2019-12-30 Shiwen He , Wei Huang , Jiaheng Wang , Ju Ren , Yongming Huang , Yaoxue Zhang

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 called edge…

Networking and Internet Architecture · Computer Science 2024-05-21 Guanqiao Qu , Zheng Lin , Fangming Liu , Xianhao Chen , Kaibin Huang

We consider a basic cache network, in which a single server is connected to multiple users via a shared bottleneck link. The server has a database of files (content). Each user has an isolated memory that can be used to cache content in a…

Information Theory · Computer Science 2019-02-19 Qian Yu , Mohammad Ali Maddah-Ali , A. Salman Avestimehr

Collaborative edge computing (CEC) is an emerging paradigm where heterogeneous edge devices collaborate to fulfill computation tasks, such as model training or video processing, by sharing communication and computation resources.…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-05-27 Jinkun Zhang , Yuezhou Liu , Edmund Yeh