LiFi:可见光通信技术发展现状与展望
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摘要
近年来,随着半导体照明技术的普及,基于LED的可见光通信技术已经引起人们广泛的关注,并逐渐成为研究热点。本文将分析高速LED光通信技术的研究背景、系统架构、前沿研究,在前沿研究部分将着重介绍材料器件、高速系统、异构组网以及水下光通信系统等。同时分析高速LED光通信系统在高速化、集成化面临的问题与挑战,并给出相应的解决方案。最后,我们展望了高速LED光通信系统的前景:在未来6G时代,随着服务于各类场景的全频谱系统的建立,高速LED光通信技术作为系统不可或缺的一部分,将得到更多的关注与发展。
In recent years,with the popularization of semiconductor lighting technology,the visible light communication based on LED has become a hot topic and massive researches have been done in this area.In this paper,the research background,system architecture and frontier research of high-speed LED optical communication technology are analyzed. In the frontier research section,the material devices,high-speed systems,heterogeneous networking and underwater optical communication systems are introduced. The challenges faced by high-speed LED optical communication system are analyzed,and the corresponding solutions are given. Finally,the prospects are illustrated of high-speed LED optical communication system:in the coming 6 G era,with the establishment of full spectrum system which will serve various service scenarios, high-speed LED optical communication technology may get more attention and better development.
In recent years,with the popularization of semiconductor lighting technology,the visible light communication based on LED has become a hot topic and massive researches have been done in this area.In this paper,the research background,system architecture and frontier research of high-speed LED optical communication technology are analyzed. In the frontier research section,the material devices,high-speed systems,heterogeneous networking and underwater optical communication systems are introduced. The challenges faced by high-speed LED optical communication system are analyzed,and the corresponding solutions are given. Finally,the prospects are illustrated of high-speed LED optical communication system:in the coming 6 G era,with the establishment of full spectrum system which will serve various service scenarios, high-speed LED optical communication technology may get more attention and better development.
引文
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[24]VUCIC J,KOTTKE C,NERRETER S,et al.513 Mbit/s visible light communications link based on DMT-modulation of a white LED[J].Journal of Lightwave Technology,2010,28(24):3512-3518.
[25]KOTTKE C,HABEL K,LANGER K D.803 Mbit/s visible light WDM link based on DMT modulation of a single RGB LED luminary[C]//Optical Fiber Communication Conference.OWB6 2011.
[26]COSSU G,KHALID A M,CHOUDHURY P,et al.2.1Gbit/s visible optical wireless transmission[C]//European Conference&Exhibition on Optical Communications.IEEE,2012.
[27]WU F M,LIN C T,WEI C C,et al.3.22-Gb/s WDMVisible Light Communication of a Single RGB LEDEmploying Carrier-Less Amplitude and Phase Modulation[C]//Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference(OFC/NFOEC),2013.IEEE,2013.
[28]WANG Y,HUANG X,ZHANG J,et al.Enhanced performance of visible light communication employing 512-QAM N-SC-FDE and DD-LMS[J].Optics Express,2014,22(13):15328-34.
[29]COSSU G,WAJAHAT A,CORSINI R,et al.5.6 Gbit/s downlink and 1.5 Gbit/s uplink optical wireless transmission at indoor distances(≥1.5 m)[C]//2014 European Conference on Optical Communication(ECOC).IEEE,2014.
[30]WANG Y,TAO L,HUANG X,et al.8-Gb/s RGBY LEDbased WDM VLC system employing high-order CAPmodulation and hybrid post equalizer[J].IEEE Photonics Journal,2015,7(6):1-1.
[31]CHI N,SHI J,ZHOU Y,et al.High speed LED based visible light communication for 5G wireless backhaul[C]//2016 IEEE Photonics Society Summer Topical Meeting Series(SUM).IEEE,2016.
[32]CHUN H,RAJBHANDARI S,FAULKNER G,et al.LEDBased Wavelength Division Multiplexed 10 Gb/s Visible Light Communications[J].Journal of Lightwave Technology,2016,34(13):3047-3052.
[33]WANG Y,CHI N,WANG Y,et al.Network Architecture of a High-Speed Visible Light Communication Local Area Network[J].IEEE Photonics Technology Letters,2015,27(2):197-200.
[34]SHI J,ZHOU Y,CHI N,et al.Gigabit LED-based visible light transparent transmission from free-space to a 100-m ultra-large effective area pure silica fiber[J].Microwave and Optical Technology Letters,2018,60(1):13-18.
[35]SHEN C,GUO Y,SUN X,et al.Going beyond 10-meter,Gbit/s underwater optical wireless communication links based on visible lasers[C]//Opto-Electronics and Communications Conference(OECC)and Photonics Global Conference(PGC),2017.IEEE,2017:1-3.
[36]HUANG Y F,TSAI C T,KAO H Y,et al.17.6-Gbps Universal Filtered Multi-Carrier Encoding of Ga N Blue LDfor Visible Light Communication[C]//Lasers&Electro-optics.IEEE,2017.
[37]ZHAO Y,WANG C,WANG F,et al.1.725Gb/s underwater visible light communication system based on a silicon substrate green LED and equal gain combination receiver[C]//International Conference and Exhibition on Visible Light Communications(ICEVLC),Tokyo,March.2018.
[2]TANAKA Y,HARUYAMA S,NAKAGAWA M.Wireless optical transmissions with white colored LED for wireless home links[C]//IEEE International Symposium on Personal.IEEE,2000.
[3]JUSTIN I,LUCIO M,JACQUES P,et al.Direct measurement of Auger electrons emitted from a semiconductor light-emitting diode under electrical injection:identification of the dominant mechanism for efficiency droop[J].Physical Review Letters,2013,110(17):177406.
[4]LEE C,SHEN C,OUBEI H M,et al.2 Gbit/s data transmission from an unfiltered laser-based phosphorconverted white lighting communication system[J].Optics Express,2015,23(23):29779.
[5]WANG F,LIU Y,JIANG F,et al.High speed underwater visible light communication system based on LEDemploying maximum ratio combination with multi-PINreception[J].Optics Communications,2018,425:106-112.
[6]ZHU X,WANG F,SHI M,et al.10.72Gbs Visible Light Communication System Based On Single Packaged Color Mixing LED Utilizing QAM-DMT Modulation and Hybrid Equalization[C]//Optical Fiber Communications Conference and Exhibition,M3K.3 2018.
[7]ELGALA H,MESLEH R,HAAS H.Indoor optical wireless communication:Potential and state-of-the-art[J].IEEE Communications Magazine,2011,49(9):56-62.
[8]O’BRIEN D,PARRY G,STAVRINOU P.Optical hotspots speed up wireless communication[J].Nature Photonics,2007,1(5):245-247.
[9]SUN Z,TENG D,LIU L,et al.A Power-Type Single Ga N-Based Blue LED With Improved Linearity for 3 Gb/s Free-Space VLC Without Pre-equalization[J].IEEEPhotonics Journal,2016,8(3):1-8.
[10]FADIL A,IIDA D,CHEN Y,et al.Surface plasmon coupling dynamics in In Ga N/Ga N quantum-well structures and radiative efficiency improvement[J].Scientific Reports,2014,4:6392.
[11]FADIL A,OU Y,ZHAN T,et al.Fabrication and improvement of nanopillar In Ga N/Ga N light-emitting diodes using nanosphere lithography[J].Journal of Nanophotonics,2015,9(1):093062.
[12]LI J,FADIL A,OU H,et al.Enhancement of the Modulation Bandwidth for surface Plasmon coupled LEDs for Visible Light Communication[C]//Lasers&Electro-optics.IEEE,2016.
[13]ASHOKKUMAR P,SAHOO B K,RAMAN A,et al.Development and characterisation of a silicon PIN diode array based highly sensitive portable continuous radon monitor[J].Journal of Radiological Protection,2013,34(1):149.
[14]YANG H D,KIL Y H,YANG J H,et al.Characterization of n-Ge/i-Ge/p-Si PIN photo-diode[J].Materials Science in Semiconductor Processing,2014,22:37-43.
[15]王瑞伟,郭心悦,徐伯庆.可见光通信集成接收机研究[J].信息技术,2013,(11):109.
[16]LI JH,HUANG XX,JI XM,et al.An integrated PIN-array receiver for visible light communication[J].Journal of Optics,2015(17):105805.
[17]LI J,XU Y,SHI J,et al.A 2×2 imaging MIMO system based on LED Visible Light Communications employing space balanced coding and integrated PIN array reception[J].Optics Communications,2016,367:214-218.
[18]SMESTAD G,RIES H,WINSTON R,et al.The thermodynamic limits of light concentrators.Sol.Energy Mater,1990,21(2):99-111.
[19]DONG Y R,SHI M,YANG X L,et al.Nanopatterned luminescent concentrators for visible light communications[J].Optics Express,2017,25(18):21926-21934.
[20]YANG X,SHI M,YU Y,et al.Enhancing Communication Bandwidths of Organic Color Converters Using Nanopatterned Hyperbolic Metamaterials[J].Journal of Lightwave Technology,2018,36(10):1862-1867.
[21]Atsushi Nakajima,Nobutada Sako,Masato Kamemura,et al.Shindai Sat:a visible light communication experimental micro-satellit[C]//International Conference on Space Optical Systems and Applications.2012.
[22]MINH H L,O’Brien D,FAULKNER G,et al.80 Mbit/s Visible Light Communications using pre-equalized white LED[C]//European Conference on Optical Communication.IEEE,2008.
[23]VUCIC J,KOTTKE C,NERRETER S,et al.White Light Wireless Transmission at 200 Mb/s Net Data Rate by Use of Discrete-Multitone Modulation[J].IEEE Photonics Technology Letters,2009,21(20):1511-1513.
[24]VUCIC J,KOTTKE C,NERRETER S,et al.513 Mbit/s visible light communications link based on DMT-modulation of a white LED[J].Journal of Lightwave Technology,2010,28(24):3512-3518.
[25]KOTTKE C,HABEL K,LANGER K D.803 Mbit/s visible light WDM link based on DMT modulation of a single RGB LED luminary[C]//Optical Fiber Communication Conference.OWB6 2011.
[26]COSSU G,KHALID A M,CHOUDHURY P,et al.2.1Gbit/s visible optical wireless transmission[C]//European Conference&Exhibition on Optical Communications.IEEE,2012.
[27]WU F M,LIN C T,WEI C C,et al.3.22-Gb/s WDMVisible Light Communication of a Single RGB LEDEmploying Carrier-Less Amplitude and Phase Modulation[C]//Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference(OFC/NFOEC),2013.IEEE,2013.
[28]WANG Y,HUANG X,ZHANG J,et al.Enhanced performance of visible light communication employing 512-QAM N-SC-FDE and DD-LMS[J].Optics Express,2014,22(13):15328-34.
[29]COSSU G,WAJAHAT A,CORSINI R,et al.5.6 Gbit/s downlink and 1.5 Gbit/s uplink optical wireless transmission at indoor distances(≥1.5 m)[C]//2014 European Conference on Optical Communication(ECOC).IEEE,2014.
[30]WANG Y,TAO L,HUANG X,et al.8-Gb/s RGBY LEDbased WDM VLC system employing high-order CAPmodulation and hybrid post equalizer[J].IEEE Photonics Journal,2015,7(6):1-1.
[31]CHI N,SHI J,ZHOU Y,et al.High speed LED based visible light communication for 5G wireless backhaul[C]//2016 IEEE Photonics Society Summer Topical Meeting Series(SUM).IEEE,2016.
[32]CHUN H,RAJBHANDARI S,FAULKNER G,et al.LEDBased Wavelength Division Multiplexed 10 Gb/s Visible Light Communications[J].Journal of Lightwave Technology,2016,34(13):3047-3052.
[33]WANG Y,CHI N,WANG Y,et al.Network Architecture of a High-Speed Visible Light Communication Local Area Network[J].IEEE Photonics Technology Letters,2015,27(2):197-200.
[34]SHI J,ZHOU Y,CHI N,et al.Gigabit LED-based visible light transparent transmission from free-space to a 100-m ultra-large effective area pure silica fiber[J].Microwave and Optical Technology Letters,2018,60(1):13-18.
[35]SHEN C,GUO Y,SUN X,et al.Going beyond 10-meter,Gbit/s underwater optical wireless communication links based on visible lasers[C]//Opto-Electronics and Communications Conference(OECC)and Photonics Global Conference(PGC),2017.IEEE,2017:1-3.
[36]HUANG Y F,TSAI C T,KAO H Y,et al.17.6-Gbps Universal Filtered Multi-Carrier Encoding of Ga N Blue LDfor Visible Light Communication[C]//Lasers&Electro-optics.IEEE,2017.
[37]ZHAO Y,WANG C,WANG F,et al.1.725Gb/s underwater visible light communication system based on a silicon substrate green LED and equal gain combination receiver[C]//International Conference and Exhibition on Visible Light Communications(ICEVLC),Tokyo,March.2018.