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In this paper, we propose a novel resource management scheme that jointly allocates the transmit power and computational resources in a centralized radio access network architecture. The network comprises a set of computing nodes to which…

网络与互联网体系结构 · 计算机科学 2021-06-24 Mohsen Tajallifar , Sina Ebrahimi , Mohammad Reza Javan , Nader Mokari , Luca Chiaraviglio

To satisfy the ever-increasing capacity demand and quality of service (QoS) requirements of users, 5G cellular systems will take the form of heterogeneous networks (HetNets) that consist of macro cells and small cells. To build and operate…

网络与互联网体系结构 · 计算机科学 2016-11-18 Sangkyu Park , Chan-Byoung Chae , Saewoong Bahk

This paper is concerned with the resource allocation in a multi-unmanned aerial vehicle (UAV)-aided network for providing enhanced mobile broadband (eMBB) services for user equipments. Different from most of the existing network resource…

网络与互联网体系结构 · 计算机科学 2021-01-01 Xing Xi , Xianbin Cao , Peng Yang , Jingxuan Chen , Dapeng Wu

Future sixth generation (6G) wireless communication networks face the need to similarly meet unprecedented quality of service (QoS) demands while also providing a larger energy efficiency (EE) to minimize their carbon footprint. Moreover,…

信息论 · 计算机科学 2024-10-28 Robert-Jeron Reifert , Stefan Roth , Alaa Alameer Ahmad , Aydin Sezgin

One of the most promising techniques for network-wide interference management necessitates a redesign of the network architecture known as cloud radio access network (CRAN). The cloud is responsible for coordinating multiple Remote Radio…

信息论 · 计算机科学 2018-06-22 Mohammed S. Al-Abiad , Ahmed Douik , Sameh Sorour , Md Jahangir Hossain

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

Open Radio Access Networks (O-RAN) are transforming telecommunications by shifting from centralized to distributed architectures, promoting flexibility, interoperability, and innovation through open interfaces and multi-vendor environments.…

密码学与安全 · 计算机科学 2025-03-12 Zaineh Abughazzah , Emna Baccour , Ahmed Refaey , Amr Mohamed , Mounir Hamdi

Multicast transmission and wireless caching are effective ways of reducing air and backhaul traffic load in wireless networks. This paper proposes to incorporate these two key ideas for content-centric multicast transmission in a cloud…

信息论 · 计算机科学 2015-08-12 Hao Zhou , Meixia Tao , Erkai Chen , Wei Yu

This letter proposes an energy efficient distributed worst case robust power allocation in massive multiple input multiple output (MIMO) system. We assume a bounded channel state information (CSI) error and all channels lie in some bounded…

信号处理 · 电气工程与系统科学 2019-01-04 Saeed Sadeghi Vilni

Providing backhaul connectivity for macro and pico base stations (BSs) constitutes a significant share of infrastructure costs in future heterogeneous networks (HetNets). To address this issue, the emerging idea of flexible backhaul is…

信息论 · 计算机科学 2020-08-28 Naeimeh Omidvar , An Liu , Vincent Lau , Fan Zhang , Danny H. K. Tsang , Mohammad Reza Pakravan

A cloud radio access network (C-RAN) is a promising cellular network, wherein densely deployed multi-antenna remote-radio-heads (RRHs) jointly serve many users using the same time-frequency resource. By extremely high signaling overheads…

信号处理 · 电气工程与系统科学 2021-07-30 Deokhwan Han , Jeonghun Park , Seok-Hwan Park , Namyoon Lee

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

Power saving is a main pillar in the operation of wireless communication systems. In this paper, we investigate cloud radio access network (C-RAN) capability to reduce power consumption based on the user equipment (UE) requirement. Aiming…

信息论 · 计算机科学 2024-05-24 Yuchao Chang , Hongli Wang , Wen Chen , Yonghui Li , Naofal Al-Dhahir

Functional split is a promising technique to flexibly balance the processing cost at remote ends and the fronthaul rate in cloud radio access networks (C-RAN). By harvesting renewable energy, remote radio units (RRUs) can save grid power…

网络与互联网体系结构 · 计算机科学 2019-11-18 Liumeng Wang , Sheng Zhou

In this paper, we study the power-efficient resource allocation for multicarrier non-orthogonal multiple access (MC-NOMA) systems. The resource allocation algorithm design is formulated as a non-convex optimization problem which takes into…

信息论 · 计算机科学 2016-07-06 Zhiqiang Wei , Derrick Wing Kwan Ng , Jinhong Yuan

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…

信号处理 · 电气工程与系统科学 2021-02-24 Navid Reyhanian , Hamid Farmanbar , Zhi-Quan Luo

This paper jointly optimizes the precoding matrices and the set of active remote radio heads (RRHs) to minimize the network power consumption (NPC) for a user-centric cloud radio access network (C-RAN), where both the RRHs and users have…

信息论 · 计算机科学 2017-02-14 Cunhua Pan , Huiling Zhu , Nathan J. Gomes , Jiangzhou Wang

In this paper, we investigate the network power minimization problem for the multicast cloud radio access network (Cloud-RAN) with imperfect channel state information (CSI). The key observation is that network power minimization can be…

信息论 · 计算机科学 2015-12-23 Yuanming Shi , Jun Zhang , Khaled B. Letaief

5G and beyond wireless networks are the upcoming evolution for the current cellular networks to provide the essential requirement of future demands such as high data rate, low energy consumption, and low latency to provide seamless…

信号处理 · 电气工程与系统科学 2020-09-16 Nazanin Moosavi , Mahnaz Sinaie , Paeiz Azmi , Pin-Hsun Lin , Eduard Jorswieck

In cloud radio access networks (C-RANs), the baseband processing of the radio units (RUs) is migrated to remote control units (CUs). This is made possible by a network of backhaul links that connects RUs and CUs and that carries compressed…

信息论 · 计算机科学 2013-12-30 Seok-Hwan Park , Osvaldo Simeone , Onur Sahin , Shlomo Shamai