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Spectrum Efficiency and Energy Efficiency in Wireless Communication Networks 无线通信网络的频谱效率和能源效率
Pub Date : 2020-10-01 DOI: 10.1109/mwc.2020.9241874
Y. Qian
In the October 2020 issue of IEEE Wireless Communications Magazine, we are pleased to present a special issue on “Spectrum and Energy Efficient Wireless Communications” with a collection of 12 articles. In this issue, we are also very glad to present 12 articles accepted from the open call. Driven by new-generation mobile devices and bandwidth consuming applications such as video streaming, wireless traffic volume is expected to continue expanding tremendously in the next few years. Sustaining this growing trend will in turn require higher spectrum capacity from the network side. Research has shown that capacity demand increases much faster than the current spectrum efficiency improvement, in particular at hot spot areas. From recent data, global mobile data traffic increased nearly 11-fold in the last few years. In contrast, the peak data rate from 3G wireless technology to 4G wireless technology only increased 55 percent in the last decade. Clearly there is a huge gap between the capacity growth of new wireless access technologies and the fast growth of wireless traffic volume for the next-generation wireless networks. In the meantime, energy efficiency, commonly defined as information bits per unit of energy, has become another essential requirement for the design of future wireless communication networks besides spectrum efficiency. Energy efficient communications have attracted great attention due to the ever-increasing demand to preserve energy resources and to protect the environment. Furthermore, mobile devices, such as smart phones and tablets, are widely used to conduct new applications such as video content distribution, location-aware advertisement, video chatting, video streaming, music and movie downloading, etc. In the year 2012, mobile video traffic exceeded 50 percent of the total wireless traffic volume for the first time. Mobile video has increased 14-fold since then, accounting for 69 percent of the total mobile data traffic by the end of last year. How to support energy and bandwidth consuming video applications with high QoE is becoming another challenging issue in future wireless networks. Clearly, there is an urgency for a new disruptive paradigm to bridge the gap between the increasing capacity, energy and QoE demands and the deficiency of radio spectrum resources. As wireless channel efficiency is approaching its fundamental limit, improvements in future wireless system capacity can be alternatively realized by networking technologies such as node density increase through underlay and overlay deployments, or by going to a higher spectrum such as millimeter wave to seek more spectrum bandwidth. In addition to delivering the required network spectrum efficiency, energy efficiency and QoE, the anticipated tremendous proliferation of machine-type devices and consumer-wearable devices also makes the underlay wireless network desirable. These small devices usually have limited onboard processing power and battery size. If they
在2020年10月的《IEEE无线通信杂志》上,我们很高兴地发表了一期关于“频谱和节能无线通信”的特刊,其中包含12篇文章。在这一期,我们也很高兴地从公开征集中选出12篇文章。在新一代移动设备和视频流等带宽消耗应用的推动下,无线流量预计将在未来几年继续大幅增长。维持这种增长趋势反过来又需要网络方面提供更高的频谱容量。研究表明,容量需求的增长速度远远快于当前频谱效率的提高,特别是在热点区域。从最近的数据来看,全球移动数据流量在过去几年中增长了近11倍。相比之下,从3G无线技术到4G无线技术的峰值数据速率在过去十年中仅增长了55%。显然,新无线接入技术的容量增长与下一代无线网络无线业务量的快速增长之间存在巨大差距。与此同时,除了频谱效率之外,能效(通常定义为单位能量的信息位数)已经成为未来无线通信网络设计的另一个基本要求。由于节约能源和保护环境的需求日益增长,节能通信引起了人们的广泛关注。此外,智能手机和平板电脑等移动设备被广泛用于视频内容分发、位置感知广告、视频聊天、视频流、音乐和电影下载等新应用。2012年,移动视频流量首次超过无线总流量的50%。自那时以来,移动视频增长了14倍,截至去年年底,占移动数据流量总量的69%。如何支持高QoE、高能耗、高带宽的视频应用成为未来无线网络的又一挑战。显然,迫切需要一种新的颠覆性范例,以弥合不断增长的容量、能源和QoE需求与无线电频谱资源不足之间的差距。随着无线信道效率接近其基本极限,未来无线系统容量的改进可以通过网络技术来实现,例如通过底层和覆盖部署增加节点密度,或者通过向更高的频谱(如毫米波)寻求更多的频谱带宽。除了提供所需的网络频谱效率、能源效率和QoE之外,机器类型设备和消费者可穿戴设备的预期巨大扩散也使底层无线网络成为人们的理想选择。这些小型设备通常具有有限的板载处理能力和电池尺寸。如果他们需要强大的计算能力来处理大量的内容信息,他们将不得不严重依赖周围的本地网络和计算平台来实现这些计算密集型的、因此耗电的应用程序。利用高性能和极低延迟的通信链路,将移动设备的计算负荷转移到附近强大的计算云,成为一个重要的发展方向。未来十年的这种范式转变还需要基于集群的底层网络技术,在这种技术中,可以选择许多底层设备的集群头作为整个集群的代表,以实现通信和控制目的。频谱和节能无线通信是当今下一代无线网络领域的重要课题之一,越来越受到工业界、研究界和学术界的关注。本期特刊重点介绍频谱和节能无线通信网络面临的挑战和新的解决方案。感谢本期特刊的特约编辑梁琦、杜拉尼、高锟、吴琦和王晓霞,他们为我们的读者出色地编辑了本期特刊。请继续关注频谱和节能无线通信研究领域的新进展,并阅读本期特刊的社论,了解更多有关论文的详细信息。除了特刊中的12篇文章外,我们还收录了12篇接受公开征集的文章。第一篇文章,“现代地面通信系统的密集小卫星网络:利益、基础设施和技术”,由N. Hassan等人撰写,展示了密集小卫星网络(dsn)基础设施的几个组成部分,包括卫星结构、轨道路径、卫星间通信链路和用于从源到目的地的数据传输的通信架构。
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引用次数: 1
5G Wireless Communication Networks: Challenges in Security and Privacy 5G无线通信网络:安全和隐私方面的挑战
Pub Date : 2020-08-01 DOI: 10.1109/mwc.2020.9170259
Y. Qian
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引用次数: 6
Challenges and Novel Solutions for 5G Network Security, Privacy and Trust 5G网络安全、隐私和信任的挑战和新解决方案
Pub Date : 2020-08-01 DOI: 10.1109/mwc.2020.9170261
W. Mazurczyk, P. Bisson, R. Jover, K. Nakao, Krzysztof Cabaj
The five articles in this special section focus on novel research contributions, demonstration results, and standardization efforts on 5G network security, privacy and trust. Currently it is expected that the generation (5G) wireless systems will soon provide rich ubiquitous communication infrastructure with wide a range of high-quality services. It is foreseen that 5G communications will offer significantly greater data bandwidth and much improved capability for networking, resulting in unfaltering user experiences for services such as: massive content streaming, telepresence, virtual/augmented reality, crowded area communications, user-centric computing, smart personal networks, Internet of Things (IoT), smart buildings, smart cities, etc. 5G systems are currently at the center of attention of academia, industry, and governments worldwide as they drive many new requirements for diff erent network capabilities. As 5G aims at utilizing many promising network technologies, such as Software Defined Networking (SDN), Network Functions Virtualization (NFV), Information Centric Network (ICN), Network Slicing, Cloud Computing, MEC, etc., supporting a huge number of connected devices integrating the above mentioned advanced technologies and innovating new techniques will surely bring tremendous challenges for security, privacy and trust.
本专题的五篇文章重点介绍了5G网络安全、隐私和信任方面的新研究贡献、示范成果和标准化工作。目前,预计下一代(5G)无线系统将很快提供丰富的无处不在的通信基础设施和广泛的高质量服务。可以预见,5G通信将提供更大的数据带宽和更强的网络能力,从而为以下服务带来不变的用户体验:海量内容流、远程呈现、虚拟/增强现实、拥挤区域通信、以用户为中心的计算、智能个人网络、物联网(IoT)、智能建筑、智能城市等。5G系统目前是全球学术界、工业界和政府关注的中心,因为它们对不同的网络功能提出了许多新的要求。由于5G旨在利用许多有前途的网络技术,如软件定义网络(SDN)、网络功能虚拟化(NFV)、信息中心网络(ICN)、网络切片、云计算、MEC等,支持大量集成上述先进技术和创新技术的连接设备,必将给安全、隐私和信任带来巨大挑战。
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引用次数: 19
Security and Wireless Communication Networks 安全和无线通信网络
Pub Date : 2020-06-12 DOI: 10.1109/mwc.2020.9116078
Y. Qian
The papers in this special section focus on advances in security and privacy techniques in emerging wireless networks.
本专题的论文重点介绍了新兴无线网络中安全和隐私技术的进展。
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引用次数: 4
Mobile Relay Technology for 5G 5G移动中继技术
Pub Date : 2020-06-01 DOI: 10.1109/mwc.2020.9116079
Gosan Noh, H. Chung, I. Kim
This paper summarizes the current status and future prospects of the mobile relay technology toward the direction of 5G. It discusses several key technical challenges when developing and deploying a mobile relay system in the aspects of frequency band, mobility, duplexing, and handover. It is expected that a mobile relay can be an efficient and cost effective deployment option in future 5G releases.
本文总结了朝着5G方向发展的移动中继技术的现状和未来展望。讨论了开发和部署移动中继系统时在频带、移动性、双工和切换等方面面临的几个关键技术挑战。预计在未来的5G版本中,移动中继将成为一种高效且具有成本效益的部署选择。
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引用次数: 7
Fog Intelligence and Radio Access Networks 雾情报和无线接入网络
Pub Date : 2020-04-01 DOI: 10.1109/mwc.2020.9085254
Y. Qian
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引用次数: 0
Artificial-Intelligence-Driven Fog Radio Access Networks: Recent Advances and Future Trends 人工智能驱动的雾无线接入网络:最新进展和未来趋势
Pub Date : 2020-04-01 DOI: 10.1109/mwc.2020.9085257
M. Peng, Tony Q. S. Quek, Guoqiang Mao, Z. Ding, Chonggang Wang
The articles in this special section focus on artificial intelligence-driven fog radio access networks. To satisfy the explosively increasing demands of highspeed data applications and access requirements from a massive number of Internet-of-Things (IoT) devices, a paradigm of fog computing-based radio access network (F-RAN) has emerged as a promising evolution path for the fifth generation (5G) radio access networks. By taking full advantage of distributed caching and centralized processing, F-RANs provide great flexibility to satisfy the quality-of-service requirements of various 5G services. With the rapid deployment of 5G communication networks, the application of F-RANs to the envisioned sixth-generation (6G) mobile network has attracted extensive attention from academia, industry, and government agencies. The 6G network progress in enhanced mobile broadband, massive machine-type communications and ultra-reliable and low-latency communications will lead to the fast development of new applications, including augmented reality (AR), virtual reality (VR), holographic communications, vehicle-to-everything (V2X), self-driving cars, massive sensors connective on the ground and several tens of thousands of satellites connective in the sky.
本专题的文章主要关注人工智能驱动的雾式无线接入网络。为了满足高速数据应用和大量物联网(IoT)设备访问需求的爆炸式增长,基于雾计算的无线接入网(F-RAN)范式已经成为第五代(5G)无线接入网的一个有前途的发展路径。通过充分利用分布式缓存和集中处理的优势,f- ran提供了极大的灵活性,以满足各种5G业务的服务质量要求。随着5G通信网络的快速部署,f - ran在第六代(6G)移动网络中的应用引起了学术界、产业界和政府机构的广泛关注。6G网络在增强型移动宽带、大规模机器类型通信以及超可靠和低延迟通信方面的进展将导致新应用的快速发展,包括增强现实(AR)、虚拟现实(VR)、全息通信、车对一切(V2X)、自动驾驶汽车、地面连接的大型传感器和天空连接的数万颗卫星。
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引用次数: 10
Enabling the Potential of 5G: Solutions to the Technical Challenges of the Diverse 5G Bands 挖掘5G潜力:应对不同5G频段技术挑战的解决方案
Pub Date : 2020-04-01 DOI: 10.1109/mwc.2020.9085256
Imadur Rahman, Thomas Chapman, M. Kazmi, F. Ghasemzadeh
During recent years, the 3GPP ecosystem has developed a fifth generation of wireless technology known as new radio (NR). The next generation specification aims to both improve the performance of mobile broadband and to expand the scope of mobile communications to encompass new so-called verticals (i.e., use cases related to specific industries). Examples of potential new areas include industry and automation, the evolving automobile industry, environmental technologies, the medical industry, and harnessing the potential of artificial intelligence systems (more details in [1] for interested readers). In the mobile broadband sphere, the emergence of applications such as virtual reality and augmented reality drive continuing growth in both traffic and subscribers, and network quality demands such as latency performance. To enable 5G growth, it is thus essential to be able to exploit newly available spectrum resources in addition to currently used spectrum under 4G systems. In this column, we refer to 2.6–7.125 GHz as “mid band” and above 24 GHz as “high band.” Providing mobile broadband services in this spectrum has presented new challenges that needed to be solved both in specifications and in implementation, as described herein. Although the core waveform in 5G NR specification is cyclic prefix orthogonal frequency-division multiplexing (CP-OFDM)based like LTE, the design of NR allows for a very high degree of flexibility in allocating different bandwidth and different numerologies, including decoupling of the total bandwidth supported by the BS and the bandwidths used for communication toward and from different user equipments (UEs). This, combined with advanced carrier aggregation and dual connectivity features, enables tailored support for complex and fragmented spectrum allocations. At medium and high bands, path loss is greater than low bands, which is compensated by beamforming using advanced antenna array technologies. The NR specification includes a large number of features intended to support beamforming processing, ranging from support of a diverse set of MIMO schemes to the development of over-the-air (OTA)-based conformance requirements, which enables tight integration of radio and antennas in large advanced antenna arrays. Even with array processing, uplink coverage with reasonable data rates may be restricted in medium and high bands. To enable flexible utilization of the available spectrum, the 3rd Generation Partnership Project (3GPP) has standardized solutions for sharing the same carriers in regular bands between LTE and NR, while operating CA between regular and mid/ high bands for NR. With such solutions, the high bands can be used close to the base station (BS), while further from the BS the uplink (UL) is provided mainly by the low band part of the NR CA pair, and the downlink (DL) is provided in the high band. The sharing solutions also provide a very effective path for migration from LTE to NR. Studies are ongoing into the
近年来,3GPP生态系统开发了第五代无线技术,称为新无线电(NR)。下一代规范旨在提高移动宽带的性能,并扩大移动通信的范围,以涵盖新的所谓垂直领域(即与特定行业相关的用例)。潜在的新领域包括工业和自动化、不断发展的汽车工业、环境技术、医疗行业以及利用人工智能系统的潜力(有兴趣的读者可以在[1]中了解更多细节)。在移动宽带领域,虚拟现实和增强现实等应用的出现推动了流量和用户的持续增长,以及延迟性能等网络质量需求。因此,为了实现5G的增长,除了目前在4G系统下使用的频谱外,还必须能够利用新的可用频谱资源。在本专栏中,我们将2.6-7.125 GHz称为“中频段”,将24 GHz以上称为“高频段”。如本文所述,在该频谱中提供移动宽带服务提出了新的挑战,这些挑战需要在规范和实施方面得到解决。虽然5G新空口规范的核心波形是基于循环前缀正交频分复用(CP-OFDM)的,如LTE,但新空口的设计允许在分配不同带宽和不同数字方面具有非常高的灵活性,包括BS支持的总带宽和用于不同用户设备(ue)之间通信的带宽的解耦。这与先进的载波聚合和双连接功能相结合,可以为复杂和碎片化的频谱分配提供量身定制的支持。在中频段和高频段,路径损耗大于低频段,这可以通过采用先进的天线阵列技术的波束形成来补偿。NR规范包括大量旨在支持波束成形处理的功能,从支持多种MIMO方案到开发基于空中(OTA)的一致性要求,从而实现无线电和天线在大型先进天线阵列中的紧密集成。即使进行了阵列处理,具有合理数据速率的上行覆盖也可能受到中高频段的限制。支持灵活的频谱利用率,第三代合作伙伴计划(3 gpp)标准化解决方案共享同一运营商在常规乐队LTE和NR之间,而操作CA之间定期和中期对NR /高乐队。有了这样的解决方案,高乐队可以使用靠近基站(BS),而进一步从BS上行(UL)是主要由低波段提供的NR CA对的一部分,和下行(DL)中提供了高乐队。共享解决方案还为从LTE到NR的迁移提供了一条非常有效的途径。目前正在研究使用场景,以及未来3GPP版本中7 - 24 GHz和52 GHz以上的更多频谱的潜力。现有的LTE频谱也正在进行改造,以便在低频段和中频段(450 MHz-3.8 GHz)进行NR操作。第15版规范中NR频谱的状态如图1所示。一旦标准化方面得到解决,利用5G标准利用新频谱在网络和终端实施和测试方面提出了新的挑战。标准化和实施方面的成功意味着中频段和高频段的部署已经在一些市场开始,并且有望大幅增长。在本专栏的其余部分中,我们将总结与在新频谱中实施5G以及以令人满意的方式证明符合无线电和无线电资源管理(RRM)规范相关的挑战,这对于获得商业级硬件至关重要。
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引用次数: 5
Intelligent Radio: When Artificial Intelligence Meets the Radio Network 智能无线电:当人工智能遇上无线网络
Pub Date : 2020-03-04 DOI: 10.1109/mwc.2020.9023916
Tao Chen, Hsiao-Hwa Chen, Zheng Chang, S. Mao
The articles in this special section provide a comprehensive overview on the recent development of the intelligent radio. The advances in wireless communications have continuously been pushing the limit of radio technologies. Nowadays, radio networks can provide extremely high data rate, ultra-low latency, and high reliability to serve communication needs of sectors that could not be imagined before. However, radio technologies have become highly complex and call for new solutions. The recent advances in artificial intelligence (AI), including machine learning (ML), data mining, and big data analysis, bring significant promise for addressing hard problems in radio networks. It has been the increasing trend to move the intelligence beyond the spectrum access, which is primarily targeted by cognitive radio, to address various challenges in radio networks, including, but not limited to, channel modeling, modulation, beamforming, radio resource allocation, and network management. Radio technologies are on the way evolving to the intelligent radio, in which AI/ML frameworks and algorithms are applied to learn from environments and explore hidden characteristics of networks for new capacity, performance, and services. We believe the intelligent radio will be the prominent feature of next generation wireless networks. It calls for interdisciplinary research to integrate the advances in AI/ML, communications, computing, and cloud technologies. Both theoretical and applied breakthroughs are expected in this new area.
本专题的文章全面概述了智能无线电的最新发展。无线通信的进步不断推动着无线电技术的发展。如今,无线网络可以提供极高的数据速率、超低延迟和高可靠性,以满足以前无法想象的行业通信需求。然而,无线电技术已经变得高度复杂,需要新的解决方案。人工智能(AI)的最新进展,包括机器学习(ML)、数据挖掘和大数据分析,为解决无线网络中的难题带来了重大希望。认知无线电的主要目标是将智能转移到频谱接入之外,以解决无线电网络中的各种挑战,包括但不限于信道建模、调制、波束形成、无线电资源分配和网络管理,这已经成为日益增长的趋势。无线电技术正在向智能无线电发展,其中AI/ML框架和算法被应用于从环境中学习,并探索网络的隐藏特征,以获得新的容量、性能和服务。我们相信智能无线电将是下一代无线网络的突出特征。它呼吁跨学科研究,以整合人工智能/机器学习、通信、计算和云技术的进步。这一新领域有望在理论和应用上取得突破。
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引用次数: 1
Artificial Intelligence and Radio Networks 人工智能与无线网络
Pub Date : 2020-02-01 DOI: 10.1109/mwc.2020.9023914
Y. Qian
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引用次数: 0
期刊
IEEE Wirel. Commun.
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