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相关论文: Power-Efficient Resource Allocation in Massive MIM…

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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…

信号处理 · 电气工程与系统科学 2024-01-30 Özlem Tuğfe Demir , Meysam Masoudi , Emil Björnson , Cicek Cavdar

Hybrid beamforming is known to be a cost-effective and wide-spread solution for a system with large-scale antenna arrays. This work studies the optimization of the analog and digital components of the hybrid beamforming solution for remote…

信息论 · 计算机科学 2019-03-15 Jaein Kim , Seok-Hwan Park , Osvaldo Simeone , Inkyu Lee , Shlomo Shamai

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…

系统与控制 · 电气工程与系统科学 2023-12-08 Jeongbin Kim , Seongah Jeong , Seonghoon Yoo , Woong Son , Joonhyuk Kang

Previous works on cell-free massive MIMO mostly consider physical-layer and fronthaul transport aspects. How to deploy cell-free massive MIMO functionality in a practical wireless system is an open problem. This paper proposes a new…

信号处理 · 电气工程与系统科学 2022-02-21 Özlem Tuğfe Demir , Meysam Masoudi , Emil Björnson , Cicek Cavdar

The limited fronthaul capacity is known to be one of the main problems in cloud radio access networks (CRANs), especially in the wireless fronthaul links. In this paper, we consider the uplink of a CRAN system, where massive multiple-input…

信息论 · 计算机科学 2021-10-07 Dick Maryopi , Yingjia Huang , Aissa Ikhlef

This paper studies the resource allocation algorithm design for multiuser coordinated multipoint (CoMP) networks with simultaneous wireless information and power transfer (SWIPT). In particular, remote radio heads (RRHs) are connected to a…

信息论 · 计算机科学 2014-07-03 Derrick Wing Kwan Ng , Robert Schober

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…

信息论 · 计算机科学 2016-12-14 Reuben George Stephen , Rui Zhang

Cloud-Radio Access Network (C-RAN) is characterized by a hierarchical structure in which the baseband processing functionalities of remote radio heads (RRHs) are implemented by means of cloud computing at a Central Unit (CU). A key…

信息论 · 计算机科学 2017-02-01 Zoran Utkovski , Osvaldo Simeone , Tamara Dimitrova , Petar Popovski

In this paper, we consider an edge cache-assisted millimeter wave cloud radio access network (C-RAN). Each remote radio head (RRH) in the C-RAN has a local cache, which can pre-fetch and store the files requested by the actuators. Multiple…

信息论 · 计算机科学 2020-02-12 Wanming Hao , Ming Zeng , Gangcan Sun , Pei Xiao

This paper provides a unified framework to deal with the challenges arising in dense cloud radio access networks (C-RAN), which include huge power consumption, limited fronthaul capacity, heavy computational complexity, unavailability of…

网络与互联网体系结构 · 计算机科学 2017-08-23 Cunhua Pan , Huiling Zhu , Nathan J. Gomes , Jiangzhou Wang

As networks evolve towards 6G, Mobile Network Operators (MNOs) must accommodate diverse requirements and at the same time manage rising energy consumption. Integrated Access and Backhaul (IAB) networks facilitate dense cellular deployments…

The heterogeneous cloud radio access network (HCRAN) is a promising paradigm which integrates the advantages of cloud radio access network (C-RAN) and heterogeneous network (HetNet). In this paper, we study the joint congestion control and…

信息论 · 计算机科学 2016-02-18 Jian Li , Mugen Peng , Yuling Yu , Zhiguo Ding

Fog Radio Access Networks (F-RAN) are gaining worldwide interests for enabling mobile edge computing for Beyond 5G. However, to realize the future real-time and delay-sensitive applications, F-RAN tailored radio resource allocation and…

网络与互联网体系结构 · 计算机科学 2020-09-28 Thi Ha Ly Dinh , Megumi Kaneko , Ellen Hidemi Fukuda , Lila Boukhatem

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

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…

信息论 · 计算机科学 2014-11-18 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

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

Cloud radio access network (C-RAN) architecture is a new mobile network architecture that enables cooperative baseband processing and information sharing among multiple cells and achieves high adaptability to nonuniform traffic by…

信息论 · 计算机科学 2017-08-03 Yi Li , M. Cenk Gursoy , Senem Velipasalar

The radio access network (RAN) part of the next-generation wireless networks will require efficient solutions for satisfying low latency and high-throughput services. The open RAN (O-RAN) is one of the candidates to achieve this goal, in…

网络与互联网体系结构 · 计算机科学 2022-02-01 Turgay Pamuklu , Shahram Mollahasani , Melike Erol-Kantarci

There are two fundamentally different fronthaul techniques in the downlink communication of cloud radio access network (C-RAN): the data-sharing strategy and the compression-based strategy. Under the former strategy, each user's message is…

信息论 · 计算机科学 2017-04-05 Liang Liu , Wei Yu

In a MIMO radar network the multiple transmit elements may emit waveforms that differ on power and bandwidth. In this paper, we are asking, given that these two resources are limited, what is the optimal power, optimal bandwidth and optimal…

信息论 · 计算机科学 2023-07-19 Nil Garcia , Alexander M. Haimovich , Martial Coulon , Marco Lops