Tackling the looming spectrum crisis in Wireless Communication
解决无线通信中迫在眉睫的频谱危机
基本信息
- 批准号:EP/K008757/1
- 负责人:
- 金额:$ 171.27万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Fellowship
- 财政年份:2013
- 资助国家:英国
- 起止时间:2013 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The advent of the first mobile phones in the 1980s marked the beginning of mobile communications for commercial purposes. Now, thirty years later, wireless connectivity has become a fundamental part of our everyday lives and is increasingly being regarded as an essential commodity like electricity, gas and water. This unparalleled success means that we are today facing the imminent shortage of radio frequency (RF) spectrum: It is predicted that the amount of data sent through wireless networks will increase by a factor of 10 during the next five years. Moreover, data from Qualcomm demonstrates that the spectrum efficiency (number of bits transmitted per Hertz bandwidth) is saturating. Therefore, the US Federal Communications Commission has warned that a "spectrum crisis" is looming.The proposed work in this EPSRC Fellowship is aimed at providing radical new solutions to this fundamental and far reaching challenge. A key pillar of the proposed work is the extension of the RF spectrum to include the infrared as well as the visible light spectra. The recent advancements in light emitting diode (LED) device technology now seems to let the vision of using light for high speed wireless communications become a reality.Using light has many key advantages as compared with RF. The available spectrum is vast, the visible light spectrum is 10,000 times larger than the RF spectrum; it is free as it is not subject to government regulations; it is more secure than the radio frequency spectrum the signals of which can be intercepted outside a premise; it can achieve three orders of magnitude higher data density per unit area. Compared to the infrared spectrum, the visible light spectrum has additional advantages. First, it is not power-limited due to eye-safety concerns. Second, it can serve two purposes at the same time: illumination and high speed data transmission, resulting in a better use of energy. However, while several hundred megabit per second (Mbps) have been demonstrated for a single link using an off-the-shelf white LED, 1 gigabit per second (Gbps) and room coverage is still an open issue. In addition, there is little research for multi-user networked OWC systems. Also, the effects of dimming on the achievable data rates are not well understood. In addition, there are environments and scenarios where the use of light is difficult or not possible such as when there is heavy blockage between transmitters and receivers, or when terminals move with high speeds. In those situations, it will still be more appropriate to use the RF spectrum. To sum up, there are potential large overall performance improvements when wireless systems can select their transmission medium autonomously and in a dynamic as well as self-organising fashion. A second essential pillar of the proposed research is to overcome the RF spectrum efficiency saturation of current cellular systems while at the same time reducing the energy consumption. A key to solving this issue is to successfully tackle interference in wireless networks which occurs when multiple communication links in close vicinity use (or reuse) the same bandwidth or frequency. On the one hand frequency reuse is beneficial since the more often transmission resources are used per unit area, the higher the spectrum efficiency. On the other hand, intensive frequency reuse results in the aforementioned interference issues. Radically new approaches will be followed that include interference already in the design of a new wireless air-interface. In the past, wireless air-interfaces were optimised for single transmission links, and performance degradations due to interference in a system deployment were mended subsequently, but existing solutions are either impractical or sub-optimum. We will investigate a new air-interface that is based on the recent successful demonstrations of and world-wide research on the concept of spatial modulation which was originally proposed by the applicant.
20世纪80年代第一批移动的电话的出现标志着商业用途的移动的通信的开始。三十年后的今天,无线连接已成为我们日常生活的基本组成部分,并越来越多地被视为与电力、天然气和水一样的基本商品。这一无与伦比的成功意味着我们今天正面临着无线电频率(RF)频谱即将短缺的问题:据预测,在未来五年内,通过无线网络发送的数据量将增加10倍。此外,高通公司的数据表明,频谱效率(每赫兹带宽传输的比特数)正在饱和。因此,美国联邦通信委员会警告说,“频谱危机”正在逼近。EPSRC奖学金的拟议工作旨在为这一根本和深远的挑战提供激进的新解决方案。拟议工作的一个关键支柱是将RF光谱扩展到包括红外和可见光光谱。发光二极管(LED)器件技术的最新进展似乎使利用光进行高速无线通信的愿景成为现实。与RF相比,利用光具有许多关键优势。可用的频谱是巨大的,可见光频谱比RF频谱大10,000倍;它是免费的,因为它不受政府法规的约束;它比无线电频谱更安全,其信号可以在房屋外被拦截;它可以实现每单位面积高三个数量级的数据密度。与红外光谱相比,可见光谱具有额外的优势。首先,出于眼睛安全考虑,它不会受到功率限制。其次,它可以同时用于两个目的:照明和高速数据传输,从而更好地利用能源。然而,虽然已经针对使用现成的白色LED的单个链路展示了每秒几百兆比特(Mbps),但是每秒1吉比特(Gbps)和房间覆盖仍然是一个未决问题。另外,对于多用户网络化OWC系统的研究也很少。此外,调光对可实现的数据速率的影响还没有得到很好的理解。此外,存在难以或不可能使用光的环境和场景,诸如当在发射器和接收器之间存在严重阻塞时,或者当终端高速移动时。在这些情况下,使用RF频谱仍然更合适。总而言之,当无线系统可以自主地并且以动态以及自组织的方式选择其传输介质时,存在潜在的大的整体性能改进。所提出的研究的第二个重要支柱是克服当前蜂窝系统的RF频谱效率饱和,同时降低能耗。解决这个问题的关键是成功地解决无线网络中的干扰,当附近的多个通信链路使用(或重用)相同的带宽或频率时,会发生干扰。一方面,频率重用是有益的,因为每单位面积使用的传输资源越频繁,频谱效率越高。另一方面,密集的频率重用导致上述干扰问题。将采用全新的方法,包括在新的无线空中接口设计中已经存在的干扰。在过去,无线空中接口针对单个传输链路进行了优化,并且随后修复了由于系统部署中的干扰而导致的性能降级,但是现有的解决方案要么是不切实际的,要么是次优的。我们将研究一种新的空中接口,该接口基于最近对空间调制概念的成功演示和世界范围的研究,该空间调制概念最初由申请人提出。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
VLC: Beyond Point-to-Point Communication
- DOI:10.1109/mcom.2014.6852089
- 发表时间:2014-07-01
- 期刊:
- 影响因子:11.2
- 作者:Burchardt, Harald;Serafimovski, Nikola;Haas, Harald
- 通讯作者:Haas, Harald
Bidirectional LiFi Attocell Access Point Slicing Scheme
- DOI:10.1109/tnsm.2018.2842055
- 发表时间:2018-05
- 期刊:
- 影响因子:5.3
- 作者:H. Alshaer;H. Haas
- 通讯作者:H. Alshaer;H. Haas
MIMO Interference Channel Between Spatial Multiplexing and Spatial Modulation
- DOI:10.1109/tcomm.2016.2580146
- 发表时间:2016-08
- 期刊:
- 影响因子:8.3
- 作者:Dushyantha A. Basnayaka;H. Haas
- 通讯作者:Dushyantha A. Basnayaka;H. Haas
Generalized LED index modulation optical OFDM for MIMO visible light communications systems
- DOI:10.1109/icc.2016.7510821
- 发表时间:2016-05
- 期刊:
- 影响因子:0
- 作者:E. Başar;E. Panayirci;M. Uysal;H. Haas
- 通讯作者:E. Başar;E. Panayirci;M. Uysal;H. Haas
Overcoming Large-Scale Fading in Cellular Systems With Network Coordination
通过网络协调克服蜂窝系统中的大规模衰落
- DOI:10.1109/tcomm.2014.2327099
- 发表时间:2014
- 期刊:
- 影响因子:8.3
- 作者:Basnayaka D
- 通讯作者:Basnayaka D
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Harald Haas其他文献
Edinburgh Research Explorer A SPAD-based Visible Light Communications Receiver Employing Higher Order Modulation
爱丁堡研究探索者采用高阶调制的基于 SPAD 的可见光通信接收器
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Oscar Almer;D. Tsonev;N. Dutton;T. Abbas;S. Videv;S. Gnecchi;Harald Haas;Robert Henderson - 通讯作者:
Robert Henderson
2D Generalized Optical Spatial Modulation for MIMO-OWC Systems
MIMO-OWC 系统的 2D 广义光空间调制
- DOI:
10.1109/jphot.2022.3192651 - 发表时间:
2022-08 - 期刊:
- 影响因子:2.4
- 作者:
Chen Chen;Lin Zeng;Xin Zhong;Shu Fu;Zhihong Zeng;Min Liu;Harald Haas - 通讯作者:
Harald Haas
Prediction-model-assisted reinforcement learning algorithm for handover decision-making in hybrid LiFi and WiFi networks
用于混合 LiFi 和 WiFi 网络中切换决策的预测模型辅助强化学习算法
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:5
- 作者:
Dayrene Frometa Fonseca;Borja Genovés Guzmán;Giovanni Luca Martena;R. Bian;Harald Haas;Domenico Giustiniano - 通讯作者:
Domenico Giustiniano
A retrospective observational pilot study of the effects of the anthroposophy based stress release trial
- DOI:
10.1016/j.eujim.2021.102016 - 发表时间:
2021-12-01 - 期刊:
- 影响因子:
- 作者:
Ursula Wolf;Lorena Rohner;Harald Haas;Theodor Hundhammer;Ursula Wolf - 通讯作者:
Ursula Wolf
Thin Receiver Freeform Lenslet Concentrator Array for LiFi
用于 LiFi 的薄型接收器自由曲面小透镜聚光器阵列
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
J. Sperga;R. Bian;M. S. Islim;John Kosman;Giovanni Luca Martena;Eoin Murphy;Harald Haas - 通讯作者:
Harald Haas
Harald Haas的其他文献
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{{ truncateString('Harald Haas', 18)}}的其他基金
MEMS-metasurface Based Tunable Optical Vortex Lasers for smart free-space communication
用于智能自由空间通信的基于 MEMS 超表面的可调谐光学涡旋激光器
- 批准号:
EP/X034542/2 - 财政年份:2024
- 资助金额:
$ 171.27万 - 项目类别:
Research Grant
Green Optical Wireless Communications Facilitated by Photonic Power Harvesting "GreenCom"
光子能量收集“GreenCom”促进绿色光无线通信
- 批准号:
EP/X027511/2 - 财政年份:2024
- 资助金额:
$ 171.27万 - 项目类别:
Research Grant
Platform Driving The Ultimate Connectivity
平台驱动终极连接
- 批准号:
EP/X04047X/2 - 财政年份:2024
- 资助金额:
$ 171.27万 - 项目类别:
Research Grant
MEMS-metasurface Based Tunable Optical Vortex Lasers for smart free-space communication
用于智能自由空间通信的基于 MEMS 超表面的可调谐光学涡旋激光器
- 批准号:
EP/X034542/1 - 财政年份:2023
- 资助金额:
$ 171.27万 - 项目类别:
Research Grant
Green Optical Wireless Communications Facilitated by Photonic Power Harvesting "GreenCom"
光子能量收集“GreenCom”促进绿色光无线通信
- 批准号:
EP/X027511/1 - 财政年份:2023
- 资助金额:
$ 171.27万 - 项目类别:
Research Grant
Platform Driving The Ultimate Connectivity
平台驱动终极连接
- 批准号:
EP/X04047X/1 - 财政年份:2023
- 资助金额:
$ 171.27万 - 项目类别:
Research Grant
Towards 100 Gigabit Wireless Networking by Light (Go-by-Light) (Ext.)
迈向 100 Gigabit 光无线网络 (Go-by-Light)(扩展)
- 批准号:
EP/R007101/2 - 财政年份:2020
- 资助金额:
$ 171.27万 - 项目类别:
Fellowship
Towards 100 Gigabit Wireless Networking by Light (Go-by-Light) (Ext.)
迈向 100 Gigabit 光无线网络 (Go-by-Light)(扩展)
- 批准号:
EP/R007101/1 - 财政年份:2018
- 资助金额:
$ 171.27万 - 项目类别:
Fellowship
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