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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

In this paper, we investigate the downlink secure beamforming (BF) design problem of cloud radio access networks (C-RANs) relying on multicast fronthaul, where millimeter-wave and microwave carriers are used for the access links and…

Information Theory · Computer Science 2020-02-12 Wanming Hao , Gangcan Sun , Jiankang Zhang , Pei Xiao , Lajos Hanzo

The cloud radio access network (C-RAN) concept, in which densely deployed access points (APs) are empowered by cloud computing to cooperatively support mobile users (MUs), to improve mobile data rates, has been recently proposed. However,…

Information Theory · Computer Science 2014-06-24 Shixin Luo , Rui Zhang , Teng Joon Lim

In a multistatic cloud radar system, receive sensors measure signals sent by a transmit element and reflected from a target and possibly clutter, in the presence of interference and noise. The receive sensors communicate over non-ideal…

Information Theory · Computer Science 2016-01-13 Seongah Jeong , Shahrouz Khalili , Osvaldo Simeone , Alexander Haimovich , Joonhyuk Kang

In this correspondence, we propose hierarchical high-altitude platform (HAP)-low-altitude platform (LAP) networks with the aim of maximizing the sum-rate of ground user equipments (UEs). The multiple aerial radio units (RUs) mounted on HAPs…

Systems and Control · Electrical Eng. & Systems 2023-12-08 Jeongbin Kim , Seongah Jeong , Seonghoon Yoo , Woong Son , Joonhyuk Kang

This paper presents a compression scheme developed for the transport of downlink radio signals in packet fronthaul of centralized-radio access networks (C-RAN). The technique is tailored to frequency-domain functional splits, in which…

Signal Processing · Electrical Eng. & Systems 2020-01-13 Cleverson Nahum , Leonardo Ramalho , Joary Fortuna , Chenguang Lu , Miguel Berg , Igor Almeida , Aldebaro Klautau

We investigate the precoding, remote radio head (RRH) selection and signal splitting in the simultaneous wireless information and power transferring (SWIPT) cloud radio access networks \mbox{(C-RANs)}. The objective is to minimize the power…

Information Theory · Computer Science 2017-11-17 Yanjie Dong , Md. Jahangir Hossain , Julian Cheng , Victor C. M. Leung

This paper addresses the coordinated scheduling problem in cloud-enabled networks. Consider the downlink of a cloud-radio access network (C-RAN), where the cloud is only responsible for the scheduling policy and the synchronization of the…

Information Theory · Computer Science 2014-11-18 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

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

Future communications systems will definitely be built on green infrastructures. To realize such a goal, recently a new network infrastructure named cloud radio access network (C-RAN) is proposed by China Mobile to enhance network coverage…

Information Theory · Computer Science 2014-10-07 Ang Yang , Zesong Fei , Chengwen Xing , Shaodan Ma , Jingming Kuang , Dalin Zhu , Ming Lei

Cloud-Radio Access Networks (Cloud-RANs) are separating the mobile networks base station functions into three units, the connection between the two of them is referred to as the fronthaul network. This work demonstrates the transmission of…

Networking and Internet Architecture · Computer Science 2021-04-13 Line Larsen , Frank Slyne , Ghizlane Mountaser , Marco Ruffini , Toktam Mahmoodi

This paper considers a multicloud radio access network (M-CRAN), wherein each cloud serves a cluster of base-stations (BS's) which are connected to the clouds through high capacity digital links. The network comprises several remote users,…

Information Theory · Computer Science 2015-03-03 Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Downlink joint transmission by a cluster of remote radio heads (RRHs) is an essential technique for enhancing throughput in future cellular networks. This method requires global channel state information (CSI) at the processing unit that…

Information Theory · Computer Science 2021-11-30 Niv Arad , Yair Noam

To alleviate the burdens on the fronthaul and reduce the transmit latency, the device-to-device (D2D) communication is presented in cloud radio access networks (C-RANs). Considering dynamic traffic arrivals and time-varying channel…

Information Theory · Computer Science 2017-09-15 Yitao Mo , Mugen Peng , Hongyu Xiang , Yaohua Sun , Xiaodong Ji

A multistatic radar set-up is considered in which distributed receive antennas are connected to a Fusion Center (FC) via limited-capacity backhaul links. Similar to cloud radio access networks in communications, the receive antennas…

Statistics Theory · Mathematics 2015-06-23 Shahrouz Khalili , Osvaldo Simeone , Alexander M. Haimovich

Resource reservation is an essential step to enable wireless data networks to support a wide range of user demands. In this paper, we consider the problem of joint resource reservation in the backhaul and Radio Access Network (RAN) based on…

Signal Processing · Electrical Eng. & Systems 2021-02-24 Navid Reyhanian , Hamid Farmanbar , Zhi-Quan Luo

Cloud radio access network (CRAN), in which remote radio heads (RRHs) are deployed to serve users in a target area, and connected to a central processor (CP) via limited-capacity links termed the fronthaul, is a promising candidate for the…

Information Theory · Computer Science 2016-12-14 Reuben George Stephen , Rui Zhang

We consider a Fog Radio Access Network (F-RAN) with a Base Band Unit (BBU) in the cloud and multiple cache-enabled enhanced Remote Radio Heads (eRRHs). The system aims at delivering contents on demand with minimal average latency from a…

Signal Processing · Electrical Eng. & Systems 2019-12-23 Jihwan Moon , Osvaldo Simeone , Seok-Hwan Park , Inkyu Lee

Recently, implementing Radio Access Network (RAN) functionalities on cloud-based computing platform has become an emerging solution that leverages the many advantages of cloud infrastructure, such as shared computing resources and storage…

Networking and Internet Architecture · Computer Science 2016-10-25 Tuyen X. Tran , Dario Pompili

The heterogeneous cloud radio access network (Cloud-RAN) provides a revolutionary way to densify radio access networks. It enables centralized coordination and signal processing for efficient interference management and flexible network…

Information Theory · Computer Science 2015-06-16 Yuanming Shi , Jun Zhang , Khaled B. Letaief , Bo Bai , Wei Chen