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Device-to-Device (D2D) communications can increase the throughput of cellular networks significantly, where the interference among D2D links should be properly managed. In this paper, we propose an opportunistic cooperative D2D transmission…

Information Theory · Computer Science 2017-02-15 Binqiang Chen , Chenyang Yang , Gang Wang

With files proactively stored at base stations (BSs), mobile edge caching enables direct content delivery without remote file fetching, which can reduce the end-to-end delay while relieving backhaul pressure. To effectively utilize the…

Networking and Internet Architecture · Computer Science 2017-10-25 Shan Zhang , Peter He , Katsuya Suto , Peng Yang , Lian Zhao , Xuemin , Shen

Distributed storage systems (DSSs) have gained a lot of interest recently, thanks to their robustness and scalability compared to single-device storage. Majority of the related research has exclusively concerned the network layer. At the…

Information Theory · Computer Science 2014-04-29 Camilla Hollanti , David Karpuk , Amaro Barreal , Hsiao-feng Francis Lu

Coded caching has been widely used in the wireless network for shifting the some transmissions during the peak traffic times to the off-peak traffic times. Multi-server coded caching, which can share responsibility for the total amount of…

Information Theory · Computer Science 2018-06-28 Minquan Cheng , Qiaoling Zhang , Jing Jiang , Reizhong Wei

Coded caching technique is an efficient approach to reduce the transmission load in networks and has been studied in heterogeneous network settings in recent years. In this paper, we consider a new widespread caching system called…

Information Theory · Computer Science 2022-12-29 Minquan Cheng , Jinwei Xu , Mingming Zhang , Youlong Wu

This paper considers peer-to-peer scheduling for a network with multiple wireless devices. A subset of the devices are mobile users that desire specific files. Each user may already have certain popular files in its cache. The remaining…

Networking and Internet Architecture · Computer Science 2012-02-22 Michael J. Neely

We consider a cache-aided wireless device-to-device (D2D) network of the type introduced by Ji, Caire, and Molisch [1], where the placement phase is orchestrated by a central server. We assume that the devices' caches are filled with…

Information Theory · Computer Science 2021-06-15 Çağkan Yapar , Kai Wan , Rafael F. Schaefer , Giuseppe Caire

We consider a cache-aided wireless device-to-device (D2D) network under the constraint of one-shot delivery, where the placement phase is orchestrated by a central server. We assume that the devices' caches are filled with uncoded data, and…

Information Theory · Computer Science 2021-06-15 Çağkan Yapar , Kai Wan , Rafael F. Schaefer , Giuseppe Caire

In this paper, we present a novel mobile edge computing (MEC) model where the MEC server has the input and output data of all computation tasks and communicates with multiple caching-and-computing-enabled mobile devices via a shared…

Information Theory · Computer Science 2019-01-29 Yaping Sun , Zhiyong Chen , Meixia Tao , Hui Liu

Emerging device centric systems (DCS) such as device-to-device (D2D) communications are considered as a standard part of future mobile networks, where operators/consumers involve the devices in direct communication to improve the cellular…

Networking and Internet Architecture · Computer Science 2017-04-03 Muhammad Z. Shakir , Muhammad Ismail , Xianbin Wang , Khalid A. Qaraqe , Erchin Serpedin

Device to device (D2D) communication is one of the most promising techniques for fifth-generation and beyond wireless communication systems. This paper considers coded caching in a wireless D2D network, in which a central server initially…

Information Theory · Computer Science 2026-01-21 Rashid Ummer N. T. , B. Sundar Rajan

Erasure codes have been widely considered a promising solution to enhance data reliability at low storage costs. However, in modern geo-distributed storage systems, erasure codes may incur high data access latency as they require data…

Information Theory · Computer Science 2020-12-08 Kaiyang Liu , Jun Peng , Jingrong Wang , Jianping Pan

The rapid growth of data volume and the accompanying congestion problems over the wireless networks have been critical issues to content providers. A novel technique, termed as coded cache, is proposed to relieve the burden. Through…

Networking and Internet Architecture · Computer Science 2015-04-08 Wei Huang , Sinong Wang , Lianghui Ding , Feng Yang , Wenjun Zhang

We consider distributed caching of content across several small base stations (SBSs) in a wireless network, where the content is encoded using a maximum distance separable code. Specifically, we apply soft time-to-live (STTL) cache…

Information Theory · Computer Science 2021-04-15 Jesper Pedersen , Alexandre Graell i Amat , Fredrik Brännström , Eirik Rosnes

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

In this work, we study the trade-off between the cache capacity and the user delay for a cooperative Small Base Station (SBS) coded caching system with mobile users. First, a delay-aware coded caching policy, which takes into account the…

Information Theory · Computer Science 2018-11-29 Emre Ozfatura , Thomas Rarris , Deniz Gunduz , Ozgur Ercetin

The fifth generation wireless networks must provide fast and reliable connectivity while coping with the ongoing traffic growth. It is of paramount importance that the required resources, such as energy and bandwidth, do not scale with…

Information Theory · Computer Science 2016-11-17 Maria Gregori , Jesús Gómez-Vilardebó , Javier Matamoros , Deniz Gündüz

Coded caching is effective in leveraging the accumulated storage size in wireless networks by distributing different coded segments of each file in multiple cache nodes. This paper aims to find a wireless coded caching policy to minimize…

Signal Processing · Electrical Eng. & Systems 2020-10-20 Zhe Zhang , Meixia Tao

Computation task service delivery in a computing-enabled and caching-aided multi-user mobile edge computing (MEC) system is studied in this paper, where a MEC server can deliver the input or output datas of tasks to mobile devices over a…

Information Theory · Computer Science 2018-07-17 Yaping Sun , Zhiyong Chen , Meixia Tao , Hui Liu

This paper considers the problem of reducing the broadcast decoding delay of wireless networks using instantly decodable network coding (IDNC) based device-to-device (D2D) communications. In a D2D configuration, devices in the network can…

Information Theory · Computer Science 2015-05-22 Ahmed Douik , Sameh Sorour , Tareq Y. Al-Naffouri , Hong-Chuan Yang , Mohamed-Slim Alouini