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Fronthaul limitations in terms of capacity and latency motivate the growing interest in the wireless industry for the study of alternative functional splits between cloud and edge nodes in Cloud Radio Access Network (C-RAN). This work…

Information Theory · Computer Science 2017-06-23 Jinkyu Kang , Osvaldo Simeone , Joonhyuk Kang , Shlomo Shamai

A fog computing based radio access network (F-RAN) is presented in this article as a promising paradigm for the fifth generation (5G) wireless communication system to provide high spectral and energy efficiency. The core idea is to take…

Information Theory · Computer Science 2016-11-17 Mugen Peng , Shi Yan , Kecheng Zhang , Chonggang Wang

The gains afforded by cloud radio access network (C-RAN) in terms of savings in capital and operating expenses, flexibility, interference management and network densification rely on the presence of high-capacity low-latency fronthaul…

Information Theory · Computer Science 2016-08-29 Osvaldo Simeone , Jinkyu Kang , Joonhyuk Kang , Shlomo Shamai

In light of the premises of beyond fifth generation (B5G) networks, the need for better exploiting the capabilities of cloud-enabled networks arises, so as to cope with the large-scale interference resulting from the massive increase of…

This work studies the joint design of cloud and edge processing for the downlink of a fog radio access network (F-RAN). In an F-RAN, as in cloud-RAN (C-RAN), a baseband processing unit (BBU) can perform joint baseband processing on behalf…

Information Theory · Computer Science 2016-01-12 Seok-Hwan Park , Osvaldo Simeone , Shlomo Shamai

Centralized coded caching and delivery is studied for a partially-connected fog radio access network (F-RAN), whereby a set of H edge nodes (ENs) (without caches), connected to a cloud server via orthogonal fronthaul links, serve K users…

Information Theory · Computer Science 2018-02-27 Ahmed Roushdy , Abolfazl Seyed Motahari , Mohammed Nafie , Deniz Gunduz

Fog radio access networks (F-RANs), which consist of a cloud and multiple edge nodes (ENs) connected via fronthaul links, have been regarded as promising network architectures. The F-RAN entails a joint optimization of cloud and edge…

Information Theory · Computer Science 2021-03-23 Hoon Lee , Junbeom Kim , Seok-Hwan Park

This paper aims to characterize the synergy of distributed caching and wireless fronthaul in a fog radio access network (Fog-RAN) where all edge nodes (ENs) and user equipments (UEs) have a local cache and store contents independently at…

Information Theory · Computer Science 2018-05-10 Fan Xu , Meixia Tao

We investigate the user-to-cell association (or user-clustering) and beamforming design for Cloud Radio Access Networks (CRANs) and Fog Radio Access Networks (FogRANs) for 5G. CRAN enables cloud centralized resource and power allocation…

Signal Processing · Electrical Eng. & Systems 2018-02-06 Nicolas Pontois , Megumi Kaneko , Thi Ha Ly Dinh , Lila Boukhatem

Fog radio access networks (F-RANs) are seen as potential architectures to support services of internet of things by leveraging edge caching and edge computing. However, current works studying resource management in F-RANs mainly consider a…

Networking and Internet Architecture · Computer Science 2018-09-18 Yaohua Sun , Mugen Peng , Shiwen Mao

Mobile cloud and edge computing protocols make it possible to offer computationally heavy applications to mobile devices via computational offloading from devices to nearby edge servers or more powerful, but remote, cloud servers. Previous…

Signal Processing · Electrical Eng. & Systems 2021-03-31 Seok-Hwan Park , Seongah Jeong , Jinyeop Na , Osvaldo Simeone , Shlomo Shamai

A multi-cell Fog-Radio Access Network (F-RAN) architecture is considered in which Internet of Things (IoT) devices periodically make noisy observations of a Quantity of Interest (QoI) and transmit using grant-free access in the uplink. The…

Information Theory · Computer Science 2020-01-22 Rahif Kassab , Osvaldo Simeone , Petar Popovski

This paper considers the uplink of a cloud radio access network (C-RAN) comprised of several multi-antenna remote radio units (RUs) which send the data that they received from multiple mobile users (MUs) to a central unit (CU) via a…

Information Theory · Computer Science 2017-04-20 Marzieh Najafi , Vahid Jamali , Derrick Wing Kwan Ng , Robert Schober

The implementation of uplink HARQ in a Cloud- Radio Access Network RAN (C-RAN) architecture is constrained by the two-way latency on the fronthaul links connecting the Remote Radio Heads (RRHs) with the Baseband Units (BBUs) that perform…

Information Theory · Computer Science 2016-09-07 Shahrouz Khalili , Osvaldo Simeone

In this work, we consider a Fog Radio Access Network (F-RAN) system with a partially connected wireless topology and no channel state information available at the cloud and Edge Nodes (ENs). An F-RAN consists of ENs that are equipped with…

Information Theory · Computer Science 2019-12-20 Wei-Ting Chang , Ravi Tandon , Osvaldo Simeone

In a Fog Radio Access Network (Fog-RAN), edge caching is combined with cloud-aided transmission in order to compensate for the limited hit probability of the caches at the base stations (BSs). Unlike the typical wired scenarios studied in…

Networking and Internet Architecture · Computer Science 2017-07-11 Igor Stanojev , Osvaldo Simeone

The evolution of telecommunication network towards cloud-native environments enables flexible centralization of the base band processing of radio signals. There is however a trade-off between the centralization benefits and the fronthaul…

Networking and Internet Architecture · Computer Science 2021-01-13 Veronica Quintuna Rodriguez , Fabrice Guillemin , Alexandre Ferrieux , Laurent Thomas

This paper considers a cloud radio access network (C-RAN) where spatially distributed remote radio heads (RRHs) communicate with a full-duplex user. In order to reflect a realistic scenario, the uplink (UL) and downlink (DL) RRHs are…

Information Theory · Computer Science 2016-03-01 Mohammadali Mohammadi , Himal A. Suraweera , Chintha Tellambura

Fog Radio Access Network (F-RAN) exploits cached contents at edge nodes (ENs) and fronthaul connection to the cloud for content delivery. Assuming dedicated fronthaul links between cloud and each EN, previous works focused on analyses of…

Information Theory · Computer Science 2020-06-15 Seyyed Mohammadreza Azimi

This work studies the advantages of coded multicasting for the downlink of a Fog Radio Access Network (F-RAN) system equipped with a multicast fronthaul link. In this system, a control unit (CU) in the baseband processing unit (BBU) pool is…

Information Theory · Computer Science 2017-05-12 Seok-Hwan Park , Osvaldo Simeone , Wonju Lee , Shlomo Shamai
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