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Cloud radio access networks (C-RAN) are a promising technology to enable the ambitious vision of the fifth generation (5G) communication networks. In spite of the potential benefits of C-RAN, the operational costs are still a challenging…

信息论 · 计算机科学 2016-07-22 Alaa Alameer , Aydin Sezgin

This letter proposes a novel Cloud Radio Access Network (C-RAN) traffic analysis and management model that estimates probable RAN traffic congestion and mitigate its effect by adopting a suitable handling mechanism. A computation approach…

分布式、并行与集群计算 · 计算机科学 2023-03-28 Smruti Rekha Swain , Deepika Saxena , Jatinder Kumar , Ashutosh Kumar Singh , Chung-Nan Lee

The heterogeneous cloud radio access network (H-CRAN) is a promising paradigm which incorporates the cloud computing into heterogeneous networks (HetNets), thereby taking full advantage of cloud radio access networks (C-RANs) and HetNets.…

网络与互联网体系结构 · 计算机科学 2016-02-18 Mugen Peng , Yuling Yu , Hongyu Xiang , H. Vincent Poor

Cooperative beamforming across access points (APs) and fronthaul quantization strategies are essential for cloud radio access network (C-RAN) systems. The nonconvexity of the C-RAN optimization problems, which is stemmed from per-AP power…

信号处理 · 电气工程与系统科学 2021-07-07 Daesung Yu , Hoon Lee , Seok-Hwan Park , Seung-Eun Hong

This article provides an overview of the state-of-art results on communication resource allocation over space, time, and frequency for emerging cognitive radio (CR) wireless networks. Focusing on the…

信息论 · 计算机科学 2016-11-17 Rui Zhang , Ying-Chang Liang , Shuguang Cui

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…

信息论 · 计算机科学 2019-04-23 Alaa Alameer Ahmad , Hayssam Dahrouj , Anas Chaaban , Aydin Sezgin , Mohamed-Slim Alouini

We study the important and challenging problem of virtualized radio access network (vRAN) design in its most general form. We develop an optimization framework that decides the number and deployment locations of central/cloud units (CUs);…

网络与互联网体系结构 · 计算机科学 2020-07-31 Fahri Wisnu Murti , Andres Garcia-Saavedra , Xavier Costa-Perez , George Iosifidis

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…

信号处理 · 电气工程与系统科学 2021-06-23 Lukuan Xing , Yong Zhou , Yuanming Shi

Network densification along with universal resources reuse is expected to play a key role in the realization of 5G radio access as an enabler for delivering most of the anticipated network capacity improvements. On the one hand, neither the…

信息论 · 计算机科学 2013-12-06 Antonis G. Gotsis , Angeliki Alexiou

In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C-RAN) is studied. More precisely, low-priority users employ cooperative spectrum sensing…

信号处理 · 电气工程与系统科学 2019-07-17 Hossein Safi , A. M Montazeri , Javane Rostampoor , Saeedeh Parsaeefard

Cloud radio access network (C-RAN) has emerged as a potential candidate of the next generation access network technology to address the increasing mobile traffic, while mobile cloud computing (MCC) offers a prospective solution to the…

网络与互联网体系结构 · 计算机科学 2016-11-17 Kezhi Wang , Kun Yang , Chathura Sarathchandra Magurawalage

In this paper, we propose a cross layer energy efficient resource allocation and remote radio head (RRH) selection algorithm for heterogeneous traffic in power domain - non-orthogonal multiple access (PD-NOMA) based heterogeneous cloud…

信号处理 · 电气工程与系统科学 2018-03-22 Ali Mokdad , Paeiz Azmi , Nader Mokari , Mohammad Moltafet , Mohsen Ghaffari-Miab

As a promising paradigm for fifth generation (5G) wireless communication systems, cloud radio access networks (C-RANs) have been shown to reduce both capital and operating expenditures, as well as to provide high spectral efficiency (SE)…

信息论 · 计算机科学 2016-11-15 M. Peng , C. Wang , V. Lau , H. V. Poor

Featured by centralized processing and cloud based infrastructure, Cloud Radio Access Network (C-RAN) is a promising solution to achieve an unprecedented system capacity in future wireless cellular networks. The huge capacity gain mainly…

信息论 · 计算机科学 2014-12-30 Congmin Fan , Ying Jun Zhang , Xiaojun Yuan

A novel dynamic radio-cooperation strategy is proposed for Cloud Radio Access Networks (C-RANs) consisting of multiple Remote Radio Heads (RRHs) connected to a central Virtual Base Station (VBS) pool. In particular, the key capabilities of…

信息论 · 计算机科学 2015-08-11 Tuyen X. Tran , Dario Pompili

The massive scale of future wireless networks will create computational bottlenecks in performance optimization. In this paper, we study the problem of connecting mobile traffic to Cloud RAN (C-RAN) stations. To balance station load, we…

网络与互联网体系结构 · 计算机科学 2018-05-07 Georgios Paschos , Nikolaos Liakopoulos , Merouane Debbah , Tong Wen

Network energy efficiency is a main pillar in the design and operation of wireless communication systems. In this paper, we investigate a dense radio access network (dense-RAN) capable of radiated power management at the base station (BS).…

信号处理 · 电气工程与系统科学 2023-04-18 Yuchao Chang , Wen Chen , Jun Li , Jianpo Liu , Haoran Wei , Zhendong Wang , Naofal Al-Dhahir

This paper considers the uplink of a cloud radio access network (C-RAN) comprised of several multi-antenna remote radio units (RUs) which compress the signals that they receive from multiple mobile users (MUs) and forward them to a CU via…

信息论 · 计算机科学 2018-08-16 Marzieh Najafi , Vahid Jamali , Derrick Wing Kwan Ng , Robert Schober

This correspondence paper investigates joint design of small base station (SBS) clustering, multicast beamforming for access and backhaul links, as well as frequency allocation in backhaul transmission to minimize the total power…

信号处理 · 电气工程与系统科学 2019-09-04 Jun Xu , Pengcheng Zhu , Jiamin Li , Xiaohu You

Ultra-dense network (UDN) is a promising technology to further evolve wireless networks and meet the diverse performance requirements of 5G networks. With abundant access points, each with communication, computation and storage resources,…

信息论 · 计算机科学 2017-09-27 Yuanming Shi , Jun Zhang , Wei Chen , Khaled B. Letaief