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A novel non-orthogonal multiple access (NOMA) based low-delay service framework is proposed for fog radio access networks (F-RANs). Fog access points (FAPs) leverage NOMA for local delivery of cached content, while the cloud access point…

信号处理 · 电气工程与系统科学 2026-02-26 Yuan Ai , Xidong Mu , Pengbo Si , Yuanwei Liu

In this paper, the cooperative caching problem in fog radio access networks (F-RANs) is investigated to jointly optimize the transmission delay and energy consumption. Exploiting the potential social relationships among fog access points…

网络与互联网体系结构 · 计算机科学 2022-06-29 Baotian Fan , Yanxiang Jiang , Fu-Chun Zheng , Mehdi Bennis , Xiaohu You

In this paper, the cooperative caching problem in fog radio access networks (F-RAN) is investigated. To maximize the incremental offloaded traffic, we formulate the clustering optimization problem with the consideration of cooperative…

信息论 · 计算机科学 2018-06-26 Xiaoting Cui , Yanxiang Jiang , Xuan Chen , Fu-Chun Zheng , Xiaohu You

Heterogeneous network is a novel network architecture proposed in Long-Term-Evolution~(LTE), which highly increases the capacity and coverage compared with the conventional networks. However, in order to provide the best services,…

信号处理 · 电气工程与系统科学 2020-03-26 Feng Wang , Wen Chen , Hongying Tang , Qingqing Wu

In cloud radio access networks (C-RANs), the baseband units and radio units of base stations are separated, which requires high-capacity fronthaul links connecting both parts. In this paper, we consider the delay-aware fronthaul allocation…

信息论 · 计算机科学 2015-03-02 Wei Wang , Vincent K. N. Lau , Mugen Peng

Centralized coded caching and delivery is studied for a partially-connected fog radio access network (F-RAN), whereby a set of H edge nodes (ENs) (without caches), connected to a cloud server via orthogonal fronthaul links, serve K users…

信息论 · 计算机科学 2018-02-27 Ahmed Roushdy , Abolfazl Seyed Motahari , Mohammed Nafie , Deniz Gunduz

In this paper, we study the design of a hybrid precoder, consisting of an analog and a digital precoder, for the delivery phase of downlink cache-enabled millimeter wave (mmWave) radio access networks (CeMm-RANs). In CeMm-RANs, enhanced…

信息论 · 计算机科学 2019-01-23 Shiwen He , Yongpeng Wu , Ju Ren , Yongming Huang , Robert Schober , Yaoxue Zhang

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

In light of the premises of beyond fifth generation (B5G) networks, the need for better exploiting the capabilities of cloud-enabled networks arises, so as to cope with the large-scale interference resulting from the massive increase of…

Centralized coded caching and delivery is studied for a radio access combination network (RACN), whereby a set of $H$ edge nodes (ENs), connected to a cloud server via orthogonal fronthaul links with limited capacity, serve a total of $K$…

信息论 · 计算机科学 2019-10-01 Ahmed Roushdy , Abolfazl Seyed Motahari , Mohammed Nafie , Deniz Gunduz

This paper investigates the compress-and-forward scheme for an uplink cloud radio access network (C-RAN) model, where multi-antenna base-stations (BSs) are connected to a cloud-computing based central processor (CP) via capacity-limited…

信息论 · 计算机科学 2016-11-18 Yuhan Zhou , Yinfei Xu , Wei Yu , Jun Chen

Wireless content caching has recently been considered as an efficient way in fog radio access networks (FRANs) to alleviate the heavy burden on capacity-limited fronthaul links and reduce delivery latency. In this paper, an advanced minimal…

信号处理 · 电气工程与系统科学 2020-02-19 Bonan Yin , Mugen Peng , Shi Yan , Chunjing Hu

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

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,…

信息论 · 计算机科学 2014-06-24 Shixin Luo , Rui Zhang , Teng Joon Lim

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…

信号处理 · 电气工程与系统科学 2022-06-24 Yanxiang Jiang , Min Zhang , Fu-Chun Zheng , Yan Chen , Mehdi Bennis , Xiaohu You

A joint resource allocation (RA), user association (UA), and power control (PC) problem is addressed for proportional fairness maximization in a cooperative multiuser downlink small cell network with limited backhaul capacity, based on…

网络与互联网体系结构 · 计算机科学 2018-08-14 Jonggyu Jang , Hyun Jong Yang , Hyekyung Jwa

Non-Orthogonal Multiple Access (NOMA) and Fog Radio Access Networks (FRAN) are promising candidates within the 5G and beyond systems. This work examines the benefit of adopting NOMA in an FRAN architecture with constrained capacity…

网络与互联网体系结构 · 计算机科学 2019-02-28 Itsikiantsoa Randrianantenaina , Megumi Kaneko , Hayssam Dahrouj , Hesham ElSawy , Mohamed-Slim Alouini

Cloud radio access network (C-RAN) and massive multiple-input-multiple-output (MIMO) are two key enabling technologies to meet the diverse and stringent requirements of the 5G use cases. In a C-RAN system with massive MIMO, fronthaul is…

信号处理 · 电气工程与系统科学 2018-10-11 Jobin Francis , Gerhard Fettweis

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

A key problem in the design of cloud radio access networks (CRANs) is that of devising effective baseband compression strategies for transmission on the fronthaul links connecting a remote radio head (RRH) to the managing central unit (CU).…

网络与互联网体系结构 · 计算机科学 2015-10-07 Eunhye Heo , Osvaldo Simeone , Hyuncheol Park