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Non-Orthogonal Multiple Access (NOMA) and Fog Radio Access Networks (FRAN) are promising candidates within the 5G and beyond systems. This work examines the benefit of adopting NOMA in an FRAN architecture with constrained capacity…

Networking and Internet Architecture · Computer Science 2019-02-28 Itsikiantsoa Randrianantenaina , Megumi Kaneko , Hayssam Dahrouj , Hesham ElSawy , Mohamed-Slim Alouini

Cell-free massive MIMO improves the fairness among the user equipments (UEs) in the network by distributing many cooperating access points (APs) around the region while connecting them to a centralized cloud-computing unit that coordinates…

Signal Processing · Electrical Eng. & Systems 2024-12-05 Ozan Alp Topal , Özlem Tuğfe Demir , Emil Björnson , Cicek Cavdar

Breaking the fronthaul capacity limitations is vital to make cloud radio access network (C-RAN) scalable and practical. One promising way is aggregating several remote radio units (RRUs) as a cluster to share a fronthaul link, so as to…

Information Theory · Computer Science 2017-01-31 Liumeng Wang , Sheng Zhou

Cloud-radio access network (C-RAN) can enable cell-less operation by connecting distributed remote radio heads (RRHs) via fronthaul links to a powerful central unit. In conventional C-RAN, baseband signals are forwarded after quantization/…

Information Theory · Computer Science 2021-03-23 Daniyal Amir Awan , Renato L. G. Cavalcante , Zoran Utkovski , Slawomir Stanczak

Recently, Cloud-based Radio Access Network (C-RAN) has been proposed as a potential solution to reduce energy cost in cellular networks. C-RAN centralizes the baseband processing capabilities of Base Stations (BSs) in a cloud computing…

Information Theory · Computer Science 2016-08-25 Qiang Fan , Hancheng Lu , Wei Jiang , Peilin Hong , Jun Wu , Chang Wen Chen

We report on the realization of a long-haul radio frequency (RF) transfer scheme by using multiple-access relay stations (MARSs). The proposed scheme with independent link noise compensation for each fiber sub-link effectively solves the…

Signal Processing · Electrical Eng. & Systems 2022-05-25 Qi Li , Liang Hu , Jinbo Zhang , Jianping Chen , Guiling Wu

For the energy-efficient deployment of cell-free massive MIMO functionality in a practical wireless network, the end-to-end (from radio site to the cloud) energy-aware operation is essential. In line with the cloudification and…

Signal Processing · Electrical Eng. & Systems 2024-01-30 Özlem Tuğfe Demir , Meysam Masoudi , Emil Björnson , Cicek Cavdar

The ever-growing demand for mobile data necessitates a transport network architecture that can withstand the 5G-and-beyond multi-Gbps traffic requirements. To cater for such unprecedented demand, studies are being conducted to incorporate…

Networking and Internet Architecture · Computer Science 2026-05-28 Sravan Reddy Chintareddy , Marco Mezzavilla , Sundeep Rangan , Morteza Hashemi

Leveraging non-terrestrial platforms in 6G networks holds immense significance as it opens up opportunities to expand network coverage, enhance connectivity, and support a wide range of innovative applications, including global-scale…

Networking and Internet Architecture · Computer Science 2023-10-27 Mohamed Rihan , Tim Due , MohammadAmin Vakilifard , Dirk Wubben , Armin Dekorsy

Offloading computation-intensive tasks to edge clouds has become an efficient way to support resource constraint edge devices. However, task offloading delay is an issue largely due to the networks with limited capacities between edge…

Networking and Internet Architecture · Computer Science 2023-08-15 Anselme Ndikumana , Kim Khoa Nguyen , Mohamed Cheriet

Facing the explosion of mobile data traffic, cloud radio access network (C-RAN) is proposed recently to overcome the efficiency and flexibility problems with the traditional RAN architecture by centralizing baseband processing. However,…

Information Theory · Computer Science 2015-09-28 Jingchu Liu , Sheng Zhou , Jie Gong , Zhisheng Niu , Shugong Xu

We simultaneously achieve clock synchronisation, clock-synchronised data transmission and ultra-low noise RF carrier generation by combining clock phase caching and frequency comb transmission in radio access networks (RAN). We demonstrate…

Systems and Control · Electrical Eng. & Systems 2025-06-09 Kari Aaron Clark , Zun Htay , Zichuan Zhou , Amany Kassem , Andrea Pertoldi , Benjamin Rudin , Florian Emaury , Izzat Darwazeh , Zhixin Liu

Passive optical networks are increasingly used for access to the Internet and it is important to understand the performance of future long-reach, multi-channel variants. In this paper we discuss requirements on the dynamic bandwidth…

Networking and Internet Architecture · Computer Science 2010-02-12 Nelson Antunes , Christine Fricker , Philippe Robert , James Roberts

Over-the-air computation (AirComp) has recently been recognized as a promising scheme for a fusion center to achieve fast distributed data aggregation in wireless networks via exploiting the superposition property of multiple-access…

Signal Processing · Electrical Eng. & Systems 2021-06-23 Lukuan Xing , Yong Zhou , Yuanming Shi

Cloud-radio access networks (C-RAN) help overcoming the scarcity of radio resources by enabling dense deployment of base-stations (BSs), and connecting them to a central-processor (CP). This paper considers the downlink of a C-RAN, where…

Information Theory · Computer Science 2019-04-23 Alaa Alameer Ahmad , Hayssam Dahrouj , Anas Chaaban , Aydin Sezgin , Mohamed-Slim Alouini

This paper considers the joint fronthaul compression and transmit beamforming design for the uplink cloud radio access network (C-RAN), in which multi-antenna user terminals communicate with a cloud-computing based centralized processor…

Information Theory · Computer Science 2017-05-09 Yuhan Zhou , Wei Yu

Current Distributed Radio Access Networks~(D-RANs), which are characterized by a static configuration and deployment of Base Stations~(BSs), have exposed their limitations in handling the temporal and geographical fluctuations of capacity…

Networking and Internet Architecture · Computer Science 2017-10-03 Abolfazl Hajisami , Tuyen X. Tran , Dario Pompili

In a cloud radio access network (C-RAN), distributed remote radio heads (RRHs) are coordinated by baseband units (BBUs) in the cloud. The centralization of signal processing provides flexibility for coordinated multi-point transmission…

Information Theory · Computer Science 2021-01-21 Lei You , Di Yuan

In this paper, we investigate the resource allocation design for integrated sensing and communication (ISAC) in distributed antenna networks (DANs). In particular, coordinated by a central processor (CP), a set of remote radio heads (RRHs)…

Information Theory · Computer Science 2023-05-03 Dongfang Xu , Ata Khalili , Xianghao Yu , Derrick Wing Kwan Ng , Robert Schober

Modulation compression is a technique considered in the recent Open-RAN (O-RAN) framework, which has continued the 3GPP effort towards the definition of new virtualized and multi-vendor RAN architectures. Basically, fronthaul compression is…

Networking and Internet Architecture · Computer Science 2020-11-10 Sandra Lagen , Lorenza Giupponi , Andreas Hansson , Xavier Gelabert