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Caching aims to store data locally in some nodes within the network to be able to retrieve the contents in shorter time periods. However, caching in the network did not always consider secure storage (due to the compromise between time…

Information Theory · Computer Science 2017-09-04 Mohsen Karimzadeh Kiskani , Hamid Sadjadpour

Device-to-device (D2D) communication is a promising approach to optimize the utilization of air interface resources in 5G networks, since it allows decentralized opportunistic short-range communication. For D2D to be useful, mobile nodes…

Information Theory · Computer Science 2016-11-15 Derya Malak , Mazin Al-Shalash , Jeffrey G. Andrews

Replicating or caching popular content in memories distributed across the network is a technique to reduce peak network loads. Conventionally, the main performance gain of this caching was thought to result from making part of the requested…

Information Theory · Computer Science 2015-09-08 Mohammad Ali Maddah-Ali , Urs Niesen

Content delivery networks store information distributed across multiple servers, so as to balance the load and avoid unrecoverable losses in case of node or disk failures. Coded caching has been shown to be a useful technique which can…

Information Theory · Computer Science 2016-11-22 Tianqiong Luo , Vaneet Aggarwal , Borja Peleato

This chapter provides an overview of coded caching in the context of heterogeneous wireless networks. We begin by briefly describing the key idea behind coded caching and then discuss in detail the impact of various aspects such as…

Information Theory · Computer Science 2020-06-02 Jad Hachem , Nikhil Karamchandani , Suhas Diggavi , Sharayu Moharir

Edge caching and computing have been regarded as an efficient approach to tackle the wireless spectrum crunch problem. In this paper, we design a general coded caching with device computing strategy for content computation, e.g., virtual…

Information Theory · Computer Science 2020-02-17 Yingjiao Li , Zhiyong Chen , Meixia Tao

Existing multicasting schemes for massive content delivery do not fully utilize multicasting opportunities in delay tolerant content-oriented applications. In this paper, we propose a novel temporal-spatial aggregation-based multicasting…

Information Theory · Computer Science 2017-02-08 Jifang Xing , Ying Cui , Vincent Lau

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

Network slicing (NwS) is one of the main technologies in the fifth-generation of mobile communication and beyond (5G+). One of the important challenges in the NwS is information uncertainty which mainly involves demand and channel state…

Signal Processing · Electrical Eng. & Systems 2022-02-11 Amir Gharehgoli , Ali Nouruzi , Nader Mokari , Paeiz Azmi , Mohamad Reza Javan , Eduard A. Jorswieck

Caching and multicasting at base stations are two promising approaches to support massive content delivery over wireless networks. However, existing scheduling designs do not make full use of the advantages of the two approaches. In this…

Information Theory · Computer Science 2016-02-25 Bo Zhou , Ying Cui , Meixia Tao

By pre-fetching popular videos into the local caches of edge nodes, wireless edge caching provides an effective means of reducing repeated content deliveries. To meet the various viewing quality requirements of multimedia users, scalable…

Networking and Internet Architecture · Computer Science 2022-07-29 Xuewei Zhang , Yuan Ren , Tiejun Lv , Lajos Hanzo

Caching of popular content on wireless nodes is recently proposed as a means to reduce congestion in the backbone of cellular networks and to improve Quality of Service. From a network point of view, the goal is to offload as many users as…

Networking and Internet Architecture · Computer Science 2017-07-11 Jonatan Krolikowski , Anastasios Giovanidis , Marco Di Renzo

Caching at the wireless edge nodes is a promising way to boost the spatial and spectral efficiency, for the sake of alleviating networks from content-related traffic. Coded caching originally introduced by Maddah-Ali and Niesen…

Information Theory · Computer Science 2022-03-18 Kai Wan , Minquan Cheng , Mari Kobayashi , Giuseppe Caire

The rate performance of wireless coded caching schemes is typically limited by the lowest achievable per-user rate in the given multicast group, during each transmission time slot. In this paper, we provide a new coded caching scheme,…

Information Theory · Computer Science 2020-03-05 MohammadJavad Salehi , Antti Tölli , Seyed Pooya Shariatpanahi

We investigate the potentials of applying the coded caching paradigm in wireless networks. In order to do this, we investigate physical layer schemes for downlink transmission from a multiantenna transmitter to several cache-enabled users.…

Information Theory · Computer Science 2018-01-30 Seyed Pooya Shariatpanahi , Giuseppe Caire , Babak Hossein Khalaj

We consider a wireless device-to-device (D2D) network where $n$ nodes are uniformly distributed at random over the network area. We let each node with storage capacity $M$ cache files from a library of size $m \geq M$. Each node in the…

Information Theory · Computer Science 2016-11-17 Sang-Woon Jeon , Song-Nam Hong , Mingyue Ji , Giuseppe Caire , Andreas F. Molisch

We propose an intelligent proactive content caching scheme to reduce the energy consumption in wireless downlink. We consider an online social network (OSN) setting where new contents are generated over time, and remain \textit{relevant} to…

Networking and Internet Architecture · Computer Science 2017-02-22 Samuel O. Somuyiwa , András György , Deniz Gündüz

Due to the drastic increase of mobile traffic, wireless caching is proposed to serve repeated requests for content download. To determine the caching scheme for decentralized caching networks, the content preference learning problem based…

Machine Learning · Computer Science 2019-08-26 Yu Ye , Ming Xiao , Mikael Skoglund

Caching the popular multimedia content is a promising way to unleash the ultimate potential of wireless networks. In this paper, we contribute to proposing and analyzing the cache-based content delivery in a three-tier heterogeneous network…

Information Theory · Computer Science 2015-08-13 Chenchen Yang , Yao Yao , Zhiyong Chen , Bin Xia

Constrained sequence (CS) codes, including fixed-length CS codes and variable-length CS codes, have been widely used in modern wireless communication and data storage systems. Sequences encoded with constrained sequence codes satisfy…

Information Theory · Computer Science 2019-06-17 Congzhe Cao , Duanshun Li , Ivan Fair