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Small cell densification is one of the effective ideas addressing the demand for higher capacity in cellular networks. The major problem faced in such networks is the wireless backhaul link and its limited capacity. Caching most popular…

Information Theory · Computer Science 2018-01-03 Mostafa Javedankherad , Zolfa Zeinalpour-Yazdi

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

With the advent of 5G networks and the rise of the Internet of Things (IoT), Content Delivery Networks (CDNs) are increasingly extending into the network edge. This shift introduces unique challenges, particularly due to the limited cache…

Networking and Internet Architecture · Computer Science 2024-04-05 Hoda Torabi , Hamzeh Khazaei , Marin Litoiu

Proactive wireless caching and device to device (D2D) communication have emerged as promising techniques for enhancing users' quality of service and network performance. In this paper, we propose a new architecture for D2D caching with…

Networking and Internet Architecture · Computer Science 2018-07-04 Ramy Amer , M. Majid Butt , Mehdi Bennis , Nicola Marchetti

Caching at small base stations (SBSs) has demonstrated significant benefits in alleviating the backhaul requirement in heterogeneous cellular networks (HetNets). While many existing works focus on what contents to cache at each SBS, an…

Information Theory · Computer Science 2016-11-15 Bo Zhou , Ying Cui , Meixia Tao

Content caching at small-cell base stations (SBSs) is a promising method to mitigate the excessive backhaul load and delay, particularly for on-demand video streaming applications. A cache-enabled heterogeneous cellular network architecture…

Information Theory · Computer Science 2019-07-10 Emre Ozfatura , Deniz Gunduz

Merging Mobile Edge Computing (MEC), which is an emerging paradigm to meet the increasing computation demands from mobile devices, with the dense deployment of Base Stations (BSs), is foreseen as a key step towards the next generation…

Networking and Internet Architecture · Computer Science 2017-01-26 Lixing Chen , Sheng Zhou , Jie Xu

Caching at mobile devices and leveraging device- to-device (D2D) communication are two promising approaches to support massive content delivery over wireless networks. The analysis of cache-enabled wireless networks is usually carried out…

Information Theory · Computer Science 2020-03-25 Ramy Amer , Hesham Elsawy , M. Majid Butt , Eduard A. Jorswieck , Mehdi Bennis , Nicola Marchetti

Mobile edge caching enables content delivery within the radio access network, which effectively alleviates the backhaul burden and reduces response time. To fully exploit edge storage resources, the most popular contents should be…

Networking and Internet Architecture · Computer Science 2018-09-05 Peng Yang , Ning Zhang , Shan Zhang , Li Yu , Junshan Zhang , Xuemin Shen

Mobile edge caching (MEC) is a promising technique to improve the quality of service (QoS) for mobile users (MU) by bringing data to the network edge. However, optimizing the crucial QoS aspects of message freshness and service promptness,…

Systems and Control · Electrical Eng. & Systems 2023-08-22 Ran Li , Chuan Huang , Xiaoqi Qin , Lei Yang

The emergence of novel interactive multimedia applications with high rate and low latency requirements has led to a drastic increase in the video data traffic over wireless cellular networks. Endowing the small base stations of a macro-cell…

Networking and Internet Architecture · Computer Science 2018-04-04 Eirina Bourtsoulatze , Deniz Gündüz

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

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…

Information Theory · Computer Science 2017-02-21 Osama A. Hanna , Amr El-Keyi , Mohammed Nafie

As memory capacity has outstripped TLB coverage, large data applications suffer from frequent page table walks. We investigate two complementary techniques for addressing this cost: reducing the number of accesses required and reducing the…

Hardware Architecture · Computer Science 2021-09-03 Chang Hyun Park , Ilias Vougioukas , Andreas Sandberg , David Black-Schaffer

A simultaneously transmitting and reflecting surface (STARS) enabled edge caching system is proposed for reducing backhaul traffic and ensuring the quality of service. A novel Caching-at-STARS structure, where a dedicated smart controller…

Systems and Control · Electrical Eng. & Systems 2023-08-02 Zhaoming Hu , Ruikang Zhong , Chao Fang , Yuanwei Liu

Today's mobile data traffic is dominated by content-oriented traffic. Caching popular contents at the network edge can alleviate network congestion and reduce content delivery latency. This paper provides a comprehensive and unified study…

Information Theory · Computer Science 2019-04-17 Meixia Tao , Deniz Gündüz , Fan Xu , Joan S. Pujol Roig

Instead of assuming fully loaded cells in the analysis on cache-enabled networks with tools of stochastic geometry, we focus on the dynamic traffic in this letter. With modeling traffic dynamics of request arrivals and departures,…

Information Theory · Computer Science 2016-09-20 Bin Xia , Chenchen Yang , Tianyu Cao

Caching popular contents at edge devices is an effective solution to alleviate the burden of the backhaul networks. Earlier investigations commonly neglected the storage cost in caching. More recently, retention-aware caching, where both…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-01-10 Ghafour Ahani , Di Yuan

A fog-aided wireless network architecture is studied in which edge-nodes (ENs), such as base stations, are connected to a cloud processor via dedicated fronthaul links, while also being endowed with caches. Cloud processing enables the…

Information Theory · Computer Science 2019-12-19 Avik Sengupta , Ravi Tandon , Osvaldo Simeone

There have been a bulk of analytic results about the performance of cellular networks where base stations are regularly located on a hexagonal or square lattice. This regular model cannot reflect the reality, and tends to overestimate the…

Networking and Internet Architecture · Computer Science 2015-03-19 Seung Min Yu , Seong-Lyun Kim