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相关论文: Content Caching and Delivery in Wireless Radio Acc…

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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…

Cloud radio access network (C-RAN) has been recognized as a promising architecture for next-generation wireless systems to \textcolor{black}{support} the rapidly increasing demand for higher data rate. However, the performance of C-RAN is…

信息论 · 计算机科学 2020-01-22 Yang Li , Minghua Xia , Yik-Chung Wu

The emerging Cloud-RAN architecture within the fifth generation (5G) of wireless networks plays a vital role in enabling higher flexibility and granularity. On the other hand, Cloud-RAN architecture introduces an additional link between the…

网络与互联网体系结构 · 计算机科学 2019-05-01 Ghizlane Mountaser , Maliheh Mahlouji , Toktam Mahmoodi

Caching popular contents at the edge of cellular networks has been proposed to reduce the load, and hence the cost of backhaul links. It is significant to decide which files should be cached and where to cache them. In this paper, we…

网络与互联网体系结构 · 计算机科学 2017-04-03 Shuo Wang , Xing Zhang , Kun Yang , Lin Wang , Wenbo Wang

Mobile networks are experiencing tremendous increase in data volume and user density. An efficient technique to alleviate this issue is to bring the data closer to the users by exploiting the caches of edge network nodes, such as fixed or…

网络与互联网体系结构 · 计算机科学 2021-05-18 Nikolaos Nomikos , Spyros Zoupanos , Themistoklis Charalambous , Ioannis Krikidis , Athina Petropulu

This paper investigates the resource allocation problem combined with fronthaul precoding and access link sparse precoding design in cloud radio access network (C-RAN) wireless fronthaul systems.Multiple remote antenna units (RAUs) in C-RAN…

信息论 · 计算机科学 2023-05-26 Peng Jiang , Jiafei Fu , Pengcheng Zhu , Jiamin Li , Xiaohu You

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

In wireless caching networks, the design of the content delivery method must consider random user requests, caching states, network topology, and interference management. In this paper, we establish a general framework for content delivery…

系统与控制 · 电气工程与系统科学 2019-12-02 Minseok Choi , Andreas F. Molisch , Joongheon Kim

In this paper, the problem of proactive deployment of cache-enabled unmanned aerial vehicles (UAVs) for optimizing the quality-of-experience (QoE) of wireless devices in a cloud radio access network (CRAN) is studied. In the considered…

In a Fog-Radio Access Network (F-RAN), edge caching and fronthaul connectivity to a cloud processor are utilized for the purpose of content delivery. Additional Device-to-Device (D2D) communication capabilities can support the operation of…

信息论 · 计算机科学 2019-12-20 Roy Karasik , Osvaldo Simeone , Shlomo Shamai

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

We study the throughput and delay characteristics of wireless caching networks, where users are mainly interested in retrieving content stored in the network, rather than in maintaining source-destination communication. Nodes are assumed to…

网络与互联网体系结构 · 计算机科学 2017-04-25 Milad Mahdian , Edmund Yeh

In order to make Internet connections ubiquitous and autonomous in our daily lives, maximizing the utilization of radio resources and social information is one of the major research topics in future mobile communication technologies. Fog…

信息论 · 计算机科学 2017-07-24 Haijun Zhang , Yu Qiu , Xiaoli Chu , Keping Long , Victor C. M. Leung

Rate splitting (RS) and wireless edge caching are essential means for meeting the quality of service requirements of future wireless networks. In this work, we focus on the cross-layer co-design of wireless edge caching schemes with…

信号处理 · 电气工程与系统科学 2021-10-27 Eleni Demarchou , Constantinos Psomas , Ioannis Krikidis

As mobile services are shifting from "connection-centric" communications to "content-centric" communications, content-centric wireless networking emerges as a promising paradigm to evolve the current network architecture. Caching popular…

信息论 · 计算机科学 2016-11-15 Rui Wang , Xi Peng , Jun Zhang , K. B. Letaief

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

In this work, we propose a content caching and delivery strategy to maximize throughput capacity in cache-enabled wireless networks. To this end, efficient betweenness (EB), which indicates the ratio of content delivery paths passing…

信息论 · 计算机科学 2020-05-11 Chenxi Zhao , Junyu Liu , Min Sheng , Yanpeng Dai

With the advent of 5G networks and the rise of the Internet of Things (IoT), Content Delivery Networks (CDNs) are increasingly extending into the network edge. This shift introduces unique challenges, particularly due to the limited cache…

网络与互联网体系结构 · 计算机科学 2024-04-05 Hoda Torabi , Hamzeh Khazaei , Marin Litoiu

This paper studies content caching in cloud-aided wireless networks where small cell base stations with limited storage are connected to the cloud via limited capacity fronthaul links. By formulating a utility (inverse of service delay)…

网络与互联网体系结构 · 计算机科学 2017-10-03 Syed Tamoor-ul-Hassan , Sumudu Samarakoon , Mehdi Bennis , Matti Latva-aho , Choong-Seong Hong

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