Spectrally efficient multi-band visible light communication system based on Nyquist PAM-8 modulation-中国期刊网

摘要 High-speedmulti-useraccesswithhighspectralefficiencyisoneofthekeychallengesforband-limitedvisiblelightcommunication(VLC)systems.Inthispaper,weproposeanovelschemeforeffectivemultiple-accessVLCsystemsbasedonmulti-band,Nyquist-filteredpulseamplitudemodulation(PAM)-8modulation.Withinthisscenario,thespectralefficiencycanbeimprovedfrom1.5to2.73b/s/HzbyimplementinganappropriateNyquistfiltertosuppressspectralbandwidth.Weexperimentallydemonstrateamulti-bandVLCsystemat1.2Gb/safter1mindoorfreespacetransmission.Thesystemperformanceshavealsobeenthoroughlyinvestigatedfordifferentsub-bandnumbers,utilizingarectangularfilterinthefrequencydomainandaNyquistfilterbasedonsquarerootraisedcosine.TheresultsshowthattheNyquist-filteredPAM-8signalcanoutperformarectangularfilteredsignal.Themaximumimprovementofsystemcapacityisupto1.67timesfortheNyquist-filteredmulti-bandsystem.Theresultsclearlyshowtheadvantageandfeasibilityofmulti-bandNyquistPAMforhigh-speedmultiple-accessVLCsystems.

1田崇文;李艳婷;叶玮琳;全相印;宋占伟;郑传涛. Performance study of an OFDM visible light communication system based on white LED array.物理电子学,2011-06.
2Jiaqi Zhao;Chaoyi Qin;Mengjie Zhang;Nan Chi. Investigation on performance of special-shaped 8-quadrature amplitude modulation constellations applied in visible light communication.物理,2016-06.
3郭心悦;李鑫. Experimental demonstration of an adaptive orthogonal frequency division multiplexing visible light communication system.光学工程,2016-11.
4章双佐;郑传涛;李艳婷;叶玮琳;刘洋. Design and experiment of post-equalization for OOK-NRZ visible light communication system.物理电子学,2012-02.
5LIANG-YU WEI;CHIN-WEI HSU;CHI-WAI CHOW;CHIEN-HUNG YEH. 20.231 Gbit/s tricolor red/green/blue laser diode based bidirectional signal remodulation visible-light communication system.物理,2018-05.
6衡航;杨理. Multi-Band Absorption Properties and Near-Field Enhancement in Mid-Infrared Based on the Interference Theory.物理,2014-05.
7CHENG Rong;YAN Xiao-ming. Indoor multisource channel characteristic for visible light communication.通信与信息系统,2013-04.
8惠柄翔;唐先锋;高娜;张文博;张晓光. High order modulation format identification based on compressed sensing in optical fiber communication system.光学工程,2016-11.
9Mazin Ali A. Ali. Underwater Optical Wireless Communications （UOWC） Based on Visible Light.物理,2016-01.
10ZHENGYinjia FENGZhen LUOCuiwen CHENGLiaoyuan. HL-2A Tokamak Plasma Visible Light Imaging System.物理,2003-01.

Spectrally efficient multi-band visible light communication system based on Nyquist PAM-8 modulation

来源期刊

相关推荐

同分类资源更多

相关关键词

Spectrally efficient multi-band visible light communication system based on Nyquist PAM-8 modulation

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多