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Mobile Edge Caching is a promising technique to enhance the content delivery quality and reduce the backhaul link congestion, by storing popular content at the network edge or mobile devices (e.g. base stations and smartphones) that are…

Computer Science and Game Theory · Computer Science 2021-09-15 Mingyu Li , Changkun Jiang , Lin Gao , Tong Wang , Yufei Jiang

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

Caching popular contents at the edge of cellular networks has been proposed to reduce the load, and hence the cost of backhaul links. It is significant to decide which files should be cached and where to cache them. In this paper, we…

Networking and Internet Architecture · Computer Science 2017-04-03 Shuo Wang , Xing Zhang , Kun Yang , Lin Wang , Wenbo Wang

We consider the problem of content caching at the wireless edge to serve a set of end users via unreliable wireless channels so as to minimize the average latency experienced by end users due to the constrained wireless edge cache capacity.…

Networking and Internet Architecture · Computer Science 2023-02-24 Guojun Xiong , Shufan Wang , Jian Li , Rahul Singh

The correlation among the content distributed across a cache-aided broadcast network can be exploited to reduce the delivery load on the shared wireless link. This paper considers a two-user three-file network with correlated content, and…

Information Theory · Computer Science 2017-12-06 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

In this paper, we investigate for the first time the benefits of wireless caching for the physical layer security (PLS) of wireless networks. In particular, a caching scheme enabling power-efficient PLS is proposed for cellular video…

Information Theory · Computer Science 2016-12-06 Lin Xiang , Derrick Wing Kwan Ng , Robert Schober , Vincent W. S. Wong

This paper focuses on edge caching in dense heterogeneous cellular networks (HetNets), in which small base stations (SBSs) with limited cache size store the popular contents, and massive multiple-input multiple-output (MIMO) aided macro…

Networking and Internet Architecture · Computer Science 2018-07-11 Lifeng Wang , Kai-Kit Wong , Sangarapillai Lambotharan , Arumugam Nallanathan , Maged Elkashlan

Nowadays, data caching is being used as a high-speed data storage layer in mobile edge computing networks employing flow control methodologies at an exponential rate. This study shows how to discover the best architecture for backhaul…

Networking and Internet Architecture · Computer Science 2022-11-29 Amir Ziaeddini , Amin Mohajer , Davoud Yousefi , A. Mirzaei , Shu Gonglee

Conventional wireless caching assumes that content can be pushed to local caching infrastructure during off-peak hours in an error-free manner; however, this assumption is not applicable if local caches need to be frequently updated via…

Information Theory · Computer Science 2018-01-22 Zhiguo Ding , Pingzhi Fan , George K. Karagiannidis , Robert Schober , H. Vincent Poor

Small base stations (SBs) of fifth-generation (5G) cellular networks are envisioned to have storage devices to locally serve requests for reusable and popular contents by \emph{caching} them at the edge of the network, close to the end…

Signal Processing · Electrical Eng. & Systems 2018-12-24 Alireza Sadeghi , Fatemeh Sheikholeslami , Antonio G. Marques , Georgios B. Giannakis

Caching is envisioned to play a critical role in next-generation content delivery infrastructure, cellular networks, and Internet architectures. By smartly storing the most popular contents at the storage-enabled network entities during…

Information Theory · Computer Science 2019-07-12 Alireza Sadeghi , Gang Wang , Georgios B. Giannakis

Video on-demand streaming from Internet-based servers is becoming one of the most important services offered by wireless networks today. In order to improve the area spectral efficiency of video transmission in cellular systems, small cells…

Networking and Internet Architecture · Computer Science 2015-03-19 Karthikeyan Shanmugam , Negin Golrezaei , Alexandros G. Dimakis , Andreas F. Molisch , Giuseppe Caire

Small-cell networks have been proposed to meet the demand of ever growing mobile data traffic. One of the prominent challenges faced by small-cell networks is the lack of sufficient backhaul capacity to connect small-cell base stations…

Networking and Internet Architecture · Computer Science 2014-07-07 Yang Guan , Yao Xiao , Hao Feng , Chien-Chung Shen , Leonard J. Cimini

Caches are an important component of modern computing systems given their significant impact on performance. In particular, caches play a key role in the cloud due to the nature of large-scale, data-intensive processing. One of the key…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-02-05 Jinhwan Choi , Yu Gu , Jinoh Kim

Backhaul traffic congestion caused by the video traffic of a few popular files can be alleviated by storing the to-be-requested content at various levels in wireless video caching networks. Typically, content service providers (CSPs) own…

Networking and Internet Architecture · Computer Science 2024-10-29 Md Ferdous Pervej , Andreas F. Molisch

We present a new architecture to handle the ongoing explosive increase in the demand for video content in wireless networks. It is based on distributed caching of the content in femto-basestations with small or non-existing backhaul…

Networking and Internet Architecture · Computer Science 2012-04-10 Negin Golrezaei , Andreas F. Molisch , Alexandros G. Dimakis , Giuseppe Caire

Mobile network operators are considering caching as one of the strategies to keep up with the increasing demand for high-definition wireless video streaming. By prefetching popular content into memory at wireless access points or end user…

Information Theory · Computer Science 2015-11-13 P. Hassanzadeh , E. Erkip , J. Llorca , A. Tulino

In wireless caching networks, a user generally has a concrete purpose of consuming contents in a certain preferred category, and requests multiple contents in sequence. While most existing research on wireless caching and delivery has…

Networking and Internet Architecture · Computer Science 2020-02-18 Minseok Choi , Andreas F. Molisch , Dong-Jun Han , Joongheon Kim , Jaekyun Moon

The performance of cloud radio access network (C-RAN) is limited by the finite capacities of the backhaul links connecting the centralized processor (CP) with the base-stations (BSs), especially when the backhaul is implemented in a…

Information Theory · Computer Science 2018-05-01 Binbin Dai , Ya-Feng Liu , Wei Yu

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