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The performance of cloud radio access network (C-RAN) is constrained by the limited fronthaul link capacity under future heavy data traffic. To tackle this problem, extensive efforts have been devoted to design efficient signal…

Information Theory · Computer Science 2015-04-15 Liu Liang , Suzhi Bi , Rui Zhang

The ultra-dense cloud radio access network (UD-CRAN), in which remote radio heads (RRHs) are densely deployed in the network, is considered. To reduce the channel estimation overhead, we focus on the design of robust transmit beamforming…

Signal Processing · Electrical Eng. & Systems 2018-04-12 Cunhua Pan , Hong Ren , Maged Elkashlan , Arumugam Nallanathan , Lajos Hanzo

The cloud radio access network (C-RAN) provides high spectral and energy efficiency performances, low expenditures and intelligent centralized system structures to operators, which has attracted intense interests in both academia and…

Information Theory · Computer Science 2014-10-30 Jian Li , Mugen Peng , Aolin Cheng , Yuling Yu , Chonggang Wang

In this paper, cooperative edge caching problem is studied in fog radio access networks (F-RANs). Given the non-deterministic polynomial hard (NP-hard) property of the problem, a dueling deep Q network (Dueling DQN) based caching update…

Signal Processing · Electrical Eng. & Systems 2022-06-24 Yanxiang Jiang , Min Zhang , Fu-Chun Zheng , Yan Chen , Mehdi Bennis , Xiaohu You

The evolution of wireless mobile networks towards cloudification, where Radio Access Network (RAN) functions can be hosted at either a central or distributed locations, offers many benefits like low cost deployment, higher capacity, and…

Networking and Internet Architecture · Computer Science 2023-11-08 Axel Grönland , Bleron Klaiqi , Xavier Gelabert

Unmanned aerial vehicles (UAVs) can be utilized as aerial base stations (ABSs) to assist terrestrial infrastructure for keeping wireless connectivity in various emergency scenarios. To maximize the coverage rate of N ground users (GUs) by…

Information Theory · Computer Science 2020-02-06 Jin Qiu , Jiangbin Lyu , Liqun Fu

In this paper, we study the stochastic optimization of cloud radio access networks (C-RANs) by joint remote radio head (RRH) activation and beamforming in the downlink. Unlike most previous works that only consider a static optimization…

Information Theory · Computer Science 2016-11-15 Jian Li , Jingxian Wu , Mugen Peng , Ping Zhang

In this paper, we design a deep learning based resource allocation framework, in the form of an auction, for simultaneous information and power transfer from a hybrid access point (AP) to information devices and energy harvesting devices,…

Signal Processing · Electrical Eng. & Systems 2021-07-08 Ali Bayat , Sonia Aissa

The cloud radio access network (C-RAN) concept, in which densely deployed access points (APs) are empowered by cloud computing to cooperatively support mobile users (MUs), to improve mobile data rates, has been recently proposed. However,…

Information Theory · Computer Science 2014-06-24 Shixin Luo , Rui Zhang , Teng Joon Lim

This work studies multigroup multicasting transmission in cloud radio access networks (C-RANs) with simultaneous wireless information and power transfer, where densely packed remote radio heads (RRHs) cooperatively provide information and…

Information Theory · Computer Science 2021-06-10 Fangqing Tan , Peiran Wu , Yik-Chung Wu , Minghua Xia

Fog radio access networks (F-RANs) are seen as potential architectures to support services of internet of things by leveraging edge caching and edge computing. However, current works studying resource management in F-RANs mainly consider a…

Networking and Internet Architecture · Computer Science 2018-09-18 Yaohua Sun , Mugen Peng , Shiwen Mao

The next-generation radio access network (RAN), known as Open RAN, is poised to feature an AI-native interface for wireless cellular networks, including emerging satellite-terrestrial systems, making deep learning integral to its operation.…

Information Theory · Computer Science 2025-02-12 Siya Chen , Chee Wei Tan , Xiangping Zhai , H. Vincent Poor

The heterogeneous cloud radio access network (Cloud-RAN) provides a revolutionary way to densify radio access networks. It enables centralized coordination and signal processing for efficient interference management and flexible network…

Information Theory · Computer Science 2015-06-16 Yuanming Shi , Jun Zhang , Khaled B. Letaief , Bo Bai , Wei Chen

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

The rapid growth of data traffic and the emerging AI-native wireless architectures in NextG cellular systems place new demands on the fronthaul links of Cloud Radio Access Networks (C-RAN). In this paper, we investigate neural compression…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Chenghong Bian , Yulin Shao , Deniz Gunduz

As a promising paradigm to reduce both capital and operating expenditures, the cloud radio access network (C-RAN) has been shown to provide high spectral efficiency and energy efficiency. Motivated by its significant theoretical performance…

Information Theory · Computer Science 2016-04-05 Mugen Peng , Yaohua Sun , Xuelong Li , Zhendong Mao , Chonggang Wang

Deep Neural Networks (DNNs) have shown significant advantages in a wide variety of domains. However, DNNs are becoming computationally intensive and energy hungry at an exponential pace, while at the same time, there is a vast demand for…

Cloud-based Radio Access Network (C-RAN) is a promising architecture for future cellular networks, in which Baseband Units (BBUs) are placed at a centralized location, with capacity-constrained fronthaul connected to multiple distributed…

Information Theory · Computer Science 2017-06-23 Lei You , Di Yuan

Cell-free massive MIMO (CF-mMIMO) systems represent a promising approach to increase the spectral efficiency of wireless communication systems. However, near-optimal beamforming solutions require a large amount of signaling exchange between…

Signal Processing · Electrical Eng. & Systems 2022-03-08 Hamed Hojatian , Jeremy Nadal , Jean-Francois Frigon , Francois Leduc-Primeau

This paper considers the power-efficient resource allocation problem in a cloud radio access network (C-RAN). The C-RAN architecture consists of a set of base-band units (BBUs) which are connected to a set of radio remote heads (RRHs)…

Signal Processing · Electrical Eng. & Systems 2019-08-22 Nahid Amani , Saeedeh Parsaeefard , Hassan Taheri , Hossein Pedram