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This work presents a new way of exploiting non-uniform file popularity in coded caching networks. Focusing on a fully-connected fully-interfering wireless setting with multiple cache-enabled transmitters and receivers, we show how…

This paper considers the multiaccess coded caching systems formulated by Hachem et al., including a central server containing $N$ files connected to $K$ cache-less users through an error-free shared link, and $K$ cache-nodes, each equipped…

信息论 · 计算机科学 2021-06-08 Minquan Cheng , Kai Wan , Dequan Liang , Mingming Zhang , Giuseppe Caire

In this paper, we study the coded caching scheme for the $(K,L,M_{\text{T}},M_{\text{U}},N)$ partially connected linear network, where there are $N$ files each of which has an equal size, $K+L-1$ transmitters and $K$ users; each user and…

信息论 · 计算机科学 2023-10-30 Minquan Cheng , Yun Xie , Zhenhao Huang , Mingming Zhang , Youlong Wu

In this work, we study a large linear interference network with an equal number of transmitters and receivers, where each transmitter is connected to two subsequent receivers. Each transmitter has individual access to a backhaul link…

信息论 · 计算机科学 2019-03-18 Eleftherios Lampiris , Aly El Gamal , Petros Elia

This paper studies caching in (K+L-1) x K partially connected wireless linear networks, where each of the K receivers locally communicates with L out of the K+L-1 transmitters, and caches are at all nodes. The goal is to design caching and…

信息论 · 计算机科学 2019-10-14 Fan Xu , Meixia Tao , Tiankai Zheng

We consider a system comprising a library of $N$ files (e.g., movies) and a wireless network with $K_T$ transmitters, each equipped with a local cache of size of $M_T$ files, and $K_R$ receivers, each equipped with a local cache of size of…

信息论 · 计算机科学 2016-11-17 Navid Naderializadeh , Mohammad Ali Maddah-Ali , A. Salman Avestimehr

Caching is an effective technique to improve user perceived experience for content delivery in wireless networks. Wireless caching differs from traditional web caching in that it can exploit the broadcast nature of wireless medium and hence…

信息论 · 计算机科学 2017-05-16 Youlong Cao , Meixia Tao , Fan Xu , Kangqi Liu

Degraded K-user broadcast channels (BC) are studied when receivers are facilitated with cache memories. Lower and upper bounds are derived on the capacity-memory tradeoff, i.e., on the largest rate of reliable communication over the BC as a…

信息论 · 计算机科学 2017-02-28 Shirin Saeedi Bidokhti , Michele Wigger , Aylin Yener

We consider a wireless Device-to-Device (D2D) network where communication is restricted to be single-hop. Users make arbitrary requests from a finite library of files and have pre-cached information on their devices, subject to a per-node…

信息论 · 计算机科学 2014-05-22 Mingyue Ji , Giuseppe Caire , Andreas F. Molisch

In this paper, we investigate the transmission delay of cache-aided broadcast networks with user cooperation. Novel coded caching schemes are proposed for both centralized and decentralized caching settings, by efficiently exploiting time…

信息论 · 计算机科学 2021-07-06 Jiahui Chen , Xiaowen You , Youlong Wu , Shuai Ma

We consider a $(G,L,K,M,N)$ cache-aided multiple-input multiple-output (MIMO) network, where a server equipped with $L$ antennas and a library of $N$ equal-size files communicates with $K$ users, each equipped with $G$ antennas and a cache…

信息论 · 计算机科学 2026-01-16 Yifei Huang , Kai Wan , Minquan Cheng , Jinyan Wang , Giuseppe Caire

This work investigates the interplay of coded caching and spatial multiplexing in an overloaded Multiple-Input-Single-Output (MISO) Broadcast Channel (BC), i.e. a system where the number of users is greater than the number of transmitting…

信息论 · 计算机科学 2017-06-27 Enrico Piovano , Hamdi Joudeh , Bruno Clerckx

In this paper, we aim at maximizing the cache offloading gain for a clustered \ac{D2D} caching network by exploiting probabilistic caching and cooperative transmission among the cluster devices. Devices with surplus memory probabilistically…

信号处理 · 电气工程与系统科学 2018-11-28 Ramy Amer , Hesham ElSawy , Jacek Kibiłda , M. Majid Butt , Nicola Marchetti

Caching at base stations is a promising technology to satisfy the increasing capacity requirements and reduce the backhaul loads in future wireless networks. Careful design of random caching can fully exploit the file popularity and achieve…

信息论 · 计算机科学 2017-09-20 Sufeng Kuang , Nan Liu

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

The ability of physical layer relay caching to increase the degrees of freedom (DoF) of a single cell was recently illustrated. In this paper, we extend this result to the case of multiple cells in which a caching relay is shared among…

信息论 · 计算机科学 2017-02-21 Osama A. Hanna , Amr El-Keyi , Mohammed Nafie

Coded caching (CC) techniques have been shown to be conveniently applicable in multi-input multi-output (MIMO) systems. In a $K$-user network with spatial multiplexing gains of $L$ at the transmitter and $G$ at every receiver, if each user…

信息论 · 计算机科学 2022-11-03 MohammadJavad Salehi , Mohammad NaseriTehrani , Antti Tölli

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…

信息论 · 计算机科学 2014-10-30 Mingyue Ji , Antonia M. Tulino , Jaime Llorca , Giuseppe Caire

Caching popular contents at the edge of the network can positively impact the performance and future sustainability of wireless networks in several ways, e.g., end-to-end access delay reduction and peak rate increase. In this paper, we aim…

信息论 · 计算机科学 2017-03-21 Marco Maso , Italo Atzeni , Imène Ghamnia , Ejder Baştuğ , Mérouane Debbah

This chapter focuses on the performance enhancement brought by the addition of caching capabilities to full-duplex (FD) radios in the context of ultra-dense networks (UDNs). More specifically, we aim at showing that the interference…

信息论 · 计算机科学 2020-04-09 Italo Atzeni , Marco Maso