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This paper investigates the fronthaul compression problem in a user-centric cloud radio access network, in which single-antenna users are served by a central processor (CP) cooperatively via a cluster of remote radio heads (RRHs). To…

信息论 · 计算机科学 2024-03-15 Ruihua Qiao , Tao Jiang , Wei Yu

Recently, Cloud-based Radio Access Network (C-RAN) has been proposed as a potential solution to reduce energy cost in cellular networks. C-RAN centralizes the baseband processing capabilities of Base Stations (BSs) in a cloud computing…

信息论 · 计算机科学 2016-08-25 Qiang Fan , Hancheng Lu , Wei Jiang , Peilin Hong , Jun Wu , Chang Wen Chen

In the Centralized-Radio Access Network (C-RAN) architecture, functions can be placed in the central or distributed locations. This architecture can offer higher capacity and cost savings but also puts strict requirements on the fronthaul…

系统与控制 · 电气工程与系统科学 2023-10-02 Axel Grönland , Alessio Russo , Yassir Jedra , Bleron Klaiqi , Xavier Gelabert

To alleviate the burdens on the fronthaul and reduce the transmit latency, the device-to-device (D2D) communication is presented in cloud radio access networks (C-RANs). Considering dynamic traffic arrivals and time-varying channel…

信息论 · 计算机科学 2017-09-15 Yitao Mo , Mugen Peng , Hongyu Xiang , Yaohua Sun , Xiaodong Ji

The deployment of ultra-dense networks (UDNs), particularly cell-free massive MIMO (CF-mMIMO), is mainly hindered by costly and capacity-limited fronthaul links. This work proposes a two-tiered optimization framework for cost-effective…

网络与互联网体系结构 · 计算机科学 2026-03-31 Anas S. Mohammed , Krishnendu S. Tharakan , Hussein A. Ammar , Hesham ElSawy , Hossam S. Hassanein

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

In this paper, by considering multiple slices, a downlink transmission of a sparse code multiple access (SCMA) based cloud-radio access network (C-RAN) is investigated. In this regard, by supposing multiple input and single output (MISO)…

网络与互联网体系结构 · 计算机科学 2019-02-26 Mohammad. Moltafet , Saeedeh. Parsaeefard , Mohammad R. Javan , Nader. Mokari

The new generation of 5G mobile services places stringent requirements for cellular network operators in terms of latency and costs. The latest trend in radio access networks (RANs) is to pool the baseband units (BBUs) of multiple radio…

网络与互联网体系结构 · 计算机科学 2019-03-29 Deval Bhamare , Aiman Erbad , Raj Jain , Maede Zolanvari , Mohammed Samaka

To meet the increasing demands of next-generation cellular networks (e.g., 6G), advanced networking technologies must be incorporated. On one hand, the Fog Radio Access Network (F-RAN), has been proposed as an enhancement to the Cloud Radio…

网络与互联网体系结构 · 计算机科学 2023-01-23 Sifat Ut Taki , Spyridon Mastorakis

OFDMA systems are considered as the promising multiple access scheme of next generation multi-cellular wireless systems. In order to ensure the optimum usage of radio resources, OFDMA radio resource management algorithms have to maximize…

信号处理 · 电气工程与系统科学 2018-03-22 Pol Henarejos , Ana Perez-Neira , Velio Tralli , Marco Moretti , Nikos Dimitriou , Giulio Dainelli

In order to support communication and computation cooperation, we propose ME-RAN architecture, which consists of mobile edge cloud (ME) as the computation provision platform and radio access network (RAN) as the communication interface.…

网络与互联网体系结构 · 计算机科学 2019-07-02 Kezhi Wang , Pei-Qiu Huang , Kun Yang , Cunhua Pan , Jiangzhou Wang

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…

信息论 · 计算机科学 2016-11-17 Meixia Tao , Erkai Chen , Hao Zhou , Wei Yu

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

With the proliferation of latency-critical applications, fog-radio network (FRAN) has been envisioned as a paradigm shift enabling distributed deployment of cloud-clone facilities at the network edge. In this paper, we consider proactive…

信息论 · 计算机科学 2019-08-20 Hong Xing , Jingjing Cui , Yansha Deng , Arumugam Nallanathan

We consider an unmanned aerial vehicle enabled (UAV-enabled) fog-radio access network (F-RAN) in which UAVs are considered as flying remote radio heads (RRH) equipped with caching and cooperative communications capabilities. We are mainly…

信息论 · 计算机科学 2019-02-25 M. G. Khoshkholgh , Keivan Navaie , Halim Yanikomerogluy , V. C. M. Leung , Kang G. Shin

Caching at base stations (BSs) is a promising approach for supporting the tremendous traffic growth of content delivery over future small-cell wireless networks with limited backhaul. This paper considers exploiting spatial caching…

信号处理 · 电气工程与系统科学 2018-08-09 Wei Han , An Liu , Wei Yu , Vincent K. N. Lau

Fog Radio Access Network (F-RAN) architectures can leverage both cloud processing and edge caching for content delivery to the users. To this end, F-RAN utilizes caches at the edge nodes (ENs) and fronthaul links connecting a cloud…

信息论 · 计算机科学 2018-04-25 Seyyed Mohammadreza Azimi , Osvaldo Simeone , Avik Sengupta , Ravi Tandon

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…

信息论 · 计算机科学 2015-06-16 Yuanming Shi , Jun Zhang , Khaled B. Letaief , Bo Bai , Wei Chen

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

This work studies the advantages of coded multicasting for the downlink of a Fog Radio Access Network (F-RAN) system equipped with a multicast fronthaul link. In this system, a control unit (CU) in the baseband processing unit (BBU) pool is…

信息论 · 计算机科学 2017-05-12 Seok-Hwan Park , Osvaldo Simeone , Wonju Lee , Shlomo Shamai