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Millimeter wave (mmWave) communications provide great potential for next-generation cellular networks to meet the demands of fast-growing mobile data traffic with plentiful spectrum available. However, in a mmWave cellular system, the…

Networking and Internet Architecture · Computer Science 2018-07-26 Xianfu Chen , Pei Liu , Hang Liu , Celimuge Wu , Yusheng Ji

New architectures and algorithms are needed to reflect the mixture of local and global information that is available as multi-agent systems connect over the cloud. We present a novel architecture for multi-agent coordination where the cloud…

Optimization and Control · Mathematics 2014-09-24 Matthew Hale , Magnus Egerstedt

With the explosive growth of smart devices and mobile data traffic, limited fronthaul capacity has become a notable bottleneck of green communication access networks, such as cloud radio access networks(C-RANs). In this paper, we proposed a…

Information Theory · Computer Science 2016-06-24 Zhi Yu , Ke Wang , Hong Ji , Xi Li , Heli Zhang

The diagonalization of a conventional multiple-input multiple-output (MIMO) channel into parallel and independent subchannels via singular value decomposition (SVD) is a fundamental strategy that allows the MIMO channel capacity to be…

Information Theory · Computer Science 2018-02-27 Liang Liu , Pratik Patil , Wei Yu

In this paper, we study the resource allocation and user scheduling problem for a downlink nonorthogonal multiple access network where the base station allocates spectrum and power resources to a set of users. We aim to jointly optimize the…

Networking and Internet Architecture · Computer Science 2016-11-17 Boya Di , Lingyang Song , Yonghui Li

Popular content caching is expected to play a major role in efficiently reducing backhaul congestion and achieving user satisfaction in next generation mobile radio systems. Consider the downlink of a cache-enabled cloud radio access…

Information Theory · Computer Science 2016-09-07 Oussama Dhifallah , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Cloud radio access network (C-RAN) is a promising technology for fifth-generation (5G) cellular systems. However the burden imposed by the huge amount of data to be collected (in the uplink) from the radio remote heads (RRHs) and processed…

Information Theory · Computer Science 2017-06-28 Alessandro Brighente , Stefano Tomasin

Compared with the fourth generation (4G) cellular systems, the fifth generation wireless communication systems (5G) are anticipated to provide spectral and energy efficiency growth by a factor of at least 10, and the area throughput growth…

Information Theory · Computer Science 2016-11-17 Mugen Peng , Yong Li , Zhongyuan Zhao , Chonggang Wang

Heterogeneous cloud radio access networks (HCRANs) are potential solutions to improve both spectral and energy efficiencies by embedding cloud computing into heterogeneous networks (HetNets). The interference among remote radio heads (RRHs)…

Information Theory · Computer Science 2016-11-15 Mugen Peng , Xinqian Xie , Qiang Hu , Jie Zhang , H. Vincent Poor

Distributed scheduling is essential for open radio access network (O-RAN) employing advanced physical-layer techniques such as multi-user MIMO (MU-MIMO), carrier aggregation (CA), and joint transmission (JT). This work investigates the…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Tenghao Cai , Lei Li , Tsung-Hui Chang

To address the limitations of traditional over-the-air federated learning (OA-FL) such as limited server coverage and low resource utilization, we propose an OA-FL in MIMO cloud radio access network (MIMO Cloud-RAN) framework, where edge…

Information Theory · Computer Science 2023-05-18 Haoming Ma , Xiaojun Yuan , Zhi Ding

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…

Networking and Internet Architecture · Computer Science 2016-11-17 Kezhi Wang , Kun Yang , Chathura Sarathchandra Magurawalage

This paper presents a content-centric transmission design in a cloud radio access network (cloud RAN) by incorporating multicasting and caching. Users requesting a same content form a multicast group and are served by a same cluster of base…

Information Theory · Computer Science 2016-11-17 Meixia Tao , Erkai Chen , Hao Zhou , Wei Yu

To meet the growing local and distributed computing needs, the cloud is now descending to the network edge and sometimes to user equipments. This approach aims at distributing computing, data processing, and networking services closer to…

Networking and Internet Architecture · Computer Science 2016-06-06 Mathieu Bouet , Vania Conan , Hicham Khalife , Kevin Phemius , Jawad Seddar

This work investigates the downlink of a cloud radio access network (C-RAN) in which a central processor communicates with two mobile users through two base stations (BSs). The BSs act as relay nodes and cooperate with each other through…

Information Theory · Computer Science 2016-11-01 Chien-Yi Wang , Michèle Wigger , Abdellatif Zaidi

Taking full advantages of both heterogeneous networks (HetNets) and cloud access radio access networks (CRANs), heterogeneous cloud radio access networks (H-CRANs) are presented to enhance both the spectral and energy efficiencies, where…

Information Theory · Computer Science 2016-11-18 Mugen Peng , Kecheng Zhang , Jiamo Jiang , Jiaheng Wang , Wenbo Wang

The cloud radio access network (Cloud-RAN) has recently been proposed as one cost-effective and energy-efficient technique for 5G wireless networks. By moving the signal processing functionality to a single baseband unit (BBU) pool,…

Information Theory · Computer Science 2015-12-16 Yuanming Shi , Jinkun Cheng , Jun Zhang , Bo Bai , Wei Chen , Khaled B. Letaief

According to the pay-per-use model adopted in clouds, the more the resources consumed by an application running in a cloud computing environment, the greater the amount of money the owner of the corresponding application will be charged.…

Distributed, Parallel, and Cluster Computing · Computer Science 2012-06-28 Nikos Tziritas , Samee Ullah Khan , Cheng-Zhong Xu , Jue Hong

This work studies the optimization of rate-splitting multiple access (RSMA) transmission technique for a cloud radio access network (C-RAN) downlink system. Main idea of RSMA is to split the message for each user equipment (UE) to private…

Signal Processing · Electrical Eng. & Systems 2019-07-05 Daesung Yu , Junbeom Kim , Seok-Hwan Park

In this article, we propose a novel formulation for the resource allocation problem of a sliced and disaggregated Radio Access Network (RAN) and its transport network. Our proposal assures an end-to-end delay bound for the Ultra-Reliable…

Networking and Internet Architecture · Computer Science 2023-06-06 Flávio G. C. Rocha , Gabriel M. F. de Almeida , Kleber V. Cardoso , Cristiano B. Both , José F. de Rezende