基于可见光通信的MIMO技术研究现状
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摘要
随着灯光与光无线通信技术的结合,基于LED的可见光通信(VLC)越来越受到人们的关注.本文首先探讨了可见光通信的基带处理过程.为了提高室内照明度,LED阵列渐渐被广泛使用,基于此,可见光通信系统中基于LED阵列的MIMO技术也进入研究者的视野,因此,随后介绍了两种VLC-MIMO机制,并介绍了空时分组编码(STBC)在VLC-MIMO系统中的研究进展.作为对比,最后对LTE系统中的物理层处理过程和多天线技术进行技术探讨,并大胆预测了可见光通信基带处理后续可能发展的方向.
Visible Light Communication( VLC) attracts more and more interest since the combination of optical wireless communication with LED.LED array also becomes much popular in order to improve indoor lighting,so the VLC-MIMO based on LED array has arisen.The baseband processing of the VLC system is introduced in this paper,followed by two VLC-MIMO systems and the research progresses of Space-Time Block Code in VLC-MIMO. The physical channel processing and multiple antenna technology in long term evolution are discussed,and the future development of VLC system is predicted.
Visible Light Communication( VLC) attracts more and more interest since the combination of optical wireless communication with LED.LED array also becomes much popular in order to improve indoor lighting,so the VLC-MIMO based on LED array has arisen.The baseband processing of the VLC system is introduced in this paper,followed by two VLC-MIMO systems and the research progresses of Space-Time Block Code in VLC-MIMO. The physical channel processing and multiple antenna technology in long term evolution are discussed,and the future development of VLC system is predicted.
引文
[1]Chi N,Haas H,Kavehrad M,et al.Visible light communications:Demand factors,benefits and opportunities[J].IEEE Wireless Communications,2015,22(2):5-7
[2]Wang Y Q,Wang Y G,Chi N,et al.Demonstration of 575Mb/s downlink and 225 Mb/s uplink bi-directional SCMWDM visible light communication using RGB LED and phosphor-based LED[J].Optics Express,2013,21(1):1203-1208
[3]Tanaka Y,Haruyam S,Nakagawa M.Wireless optical transmissions with white colored LED for wireless home links[J].The 11th IEEE International Symposium on Personal,Indoor and Mobile Radio Communications,2000,2:1325-1329
[4]Komine T,Nakagawa M.Performance evaluation of visible-light wireless communication system using white LED lightings[J].Proceedings of the Ninth International Symposium on Computers and Communications,2004,2:258-263
[5]Afgani M Z,Haas H,Elgala H.Visible light communication using OFDM[C]∥2nd International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities,2006:80-85
[6]Tsonev D,Chun H,Rajbhandari S,et al.A 3 Gb/s singleLED OFDM-based wireless VLC link using a Gallium Nitride[J].IEEE Photonics Technology Letters,2014,26(7):637-640
[7]Chagnon M,Osman M,Poulin M,et al.Experimental study of 112 Gb/s short reach transmission employing PAM formats and Si P intensity modulator at 1.3μm[J].Optics Express,2014,22(17):21018-21036
[8]Rodes R,Estaran J,Li B M,et al.100 Gb/s single VCSEL data transmission link[C]∥Optical Fiber Communication Conference and Exposition(OFC/NFOEC),2012 and the National Fiber Optic Engineers Conference,2012,DOI:10.1364/NFOEC.2012.PDP5D.10
[9]Olmedo M I,Zuo T J,Jensen J B,et al.Towards 400GBASE 4-lane solution using direct detection of Multi CAP signal in 14 GHz bandwidth per lane[C]∥Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference(OFC/NFOEC),2013,DOI:10.1364/NFOEC.2013.PDP5C.10
[10]Wei J L,Ingham J D,Cheng Q X,et al.Experimental demonstration of optical data links using a hybrid CAP/QAM Modulation scheme[J].Optics Letters,2014,39(6):1402-1405
[11]Olmedo M I,Zuo T,Jensen J B,et al.Multiband carrierless amplitude phase modulation for high capacity optical data links[J].Journal of Lightwave Technology,2014,32(4):798-804
[12]Tanaka T,Nishihara M,Takahara T,et al.Experimental demonstration of 448 Gb/s+DMT transmission over 30km SMF[C]∥Optical Fiber Communication Conference,2014,DOI:10.1364/OFC.2014.M2I.5
[13]Kai Y,Nishihara M,Tanaka T,et al.Experimental comparison of pulse amplitude modulation(PAM)and discrete multi-tone(DMT)for short-reach 400 Gb/s data communication[C]∥39th European Conference and Exhibition on Optical Communication,2013,DOI:10.1049/cp.2013.1523
[14]Wang Y G,Tao L,Huang X X,et al.8 Gb/s RGBY LEDbased WDM VLC system employing high-order CAP modulation and hybrid post equalizer[J].IEEE Photonics Journal,2015,7(6):1-1
[15]迟楠,王一光,王源泉.可见光通信多维复用技术研究[J].光学与光电技术,2014,12(4):1-6CHI Nan,WANG Yiguang,WANG Yuanquan.Research of multi-dimensional multiplexing schemes in visible light communication[J].Optics&Optoelectronic Technology,2014,12(4):1-6
[16]Wang Y Q,Chi N,Li R L,et al.Theoretical and simulation analysis of a novel multiple-input multipleoutput scheme over multimode fiber links with dual restricted launch techniques[J].Optical Engineering,2012,51(6):065002
[17]Zeng L B,O'Brien D C,Minh H L,et al.High data rate multiple input multiple output(MIMO)optical wireless communications using white led lighting[J].IEEE Journal on Selected Areas in Communications,2009,27(9):1654-1662
[18]Jivkova S,Hristov B A,Kavehrad M.Power-efficient multi spot diffuse multiple-input-multiple-output approach to broad-band optical wireless communications[J].IEEE Transactions on Vehicular Technology,2004,53(3):882-889
[19]Azhar A H,Tran T,O'Brien D.A Gigabit/s indoor wireless transmission using MIMO-OFDM visible-light communications[J].IEEE Photonics Technology Letters,2013,25(2):171-174
[20]Wang Y Q,Chi N.Indoor Gigabit 2×2 imaging multipleinput multiple-output visible light communication[J].Chinese Optics Letters,2014,12(10):100603
[21]Chi N,Shi J Y.Investigation on overlapping interference on VLC networks consisting of multiple LEDs[J].ICT Express,2015,1(2):63-66
[22]Shi J Y,Wang Y Q,Huang X X,et al.Enhanced performance employing STBC aided coding for LED based multiple input single output visible light communication network[J].Microwave and Optical Technology Letters,2015,57(12):2943-2946
[23]Shi J Y,Huang X X,Wang Y G,et al.Improved performance of a high speed 2×2 MIMO VLC network Based on EGC-STBC[C]∥European Conference on Optical Communication,2015:1-3
[24]3GPP.3GPP TR 36.211-v14.1.0.Evolved Universal Terrestrial Radio Access(E-UTRA):Physical channels and modulation(Release 14)[S].Europe:3rd Generation Partnership Project Technical Specification Group Radio Access Network,2016
[2]Wang Y Q,Wang Y G,Chi N,et al.Demonstration of 575Mb/s downlink and 225 Mb/s uplink bi-directional SCMWDM visible light communication using RGB LED and phosphor-based LED[J].Optics Express,2013,21(1):1203-1208
[3]Tanaka Y,Haruyam S,Nakagawa M.Wireless optical transmissions with white colored LED for wireless home links[J].The 11th IEEE International Symposium on Personal,Indoor and Mobile Radio Communications,2000,2:1325-1329
[4]Komine T,Nakagawa M.Performance evaluation of visible-light wireless communication system using white LED lightings[J].Proceedings of the Ninth International Symposium on Computers and Communications,2004,2:258-263
[5]Afgani M Z,Haas H,Elgala H.Visible light communication using OFDM[C]∥2nd International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities,2006:80-85
[6]Tsonev D,Chun H,Rajbhandari S,et al.A 3 Gb/s singleLED OFDM-based wireless VLC link using a Gallium Nitride[J].IEEE Photonics Technology Letters,2014,26(7):637-640
[7]Chagnon M,Osman M,Poulin M,et al.Experimental study of 112 Gb/s short reach transmission employing PAM formats and Si P intensity modulator at 1.3μm[J].Optics Express,2014,22(17):21018-21036
[8]Rodes R,Estaran J,Li B M,et al.100 Gb/s single VCSEL data transmission link[C]∥Optical Fiber Communication Conference and Exposition(OFC/NFOEC),2012 and the National Fiber Optic Engineers Conference,2012,DOI:10.1364/NFOEC.2012.PDP5D.10
[9]Olmedo M I,Zuo T J,Jensen J B,et al.Towards 400GBASE 4-lane solution using direct detection of Multi CAP signal in 14 GHz bandwidth per lane[C]∥Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference(OFC/NFOEC),2013,DOI:10.1364/NFOEC.2013.PDP5C.10
[10]Wei J L,Ingham J D,Cheng Q X,et al.Experimental demonstration of optical data links using a hybrid CAP/QAM Modulation scheme[J].Optics Letters,2014,39(6):1402-1405
[11]Olmedo M I,Zuo T,Jensen J B,et al.Multiband carrierless amplitude phase modulation for high capacity optical data links[J].Journal of Lightwave Technology,2014,32(4):798-804
[12]Tanaka T,Nishihara M,Takahara T,et al.Experimental demonstration of 448 Gb/s+DMT transmission over 30km SMF[C]∥Optical Fiber Communication Conference,2014,DOI:10.1364/OFC.2014.M2I.5
[13]Kai Y,Nishihara M,Tanaka T,et al.Experimental comparison of pulse amplitude modulation(PAM)and discrete multi-tone(DMT)for short-reach 400 Gb/s data communication[C]∥39th European Conference and Exhibition on Optical Communication,2013,DOI:10.1049/cp.2013.1523
[14]Wang Y G,Tao L,Huang X X,et al.8 Gb/s RGBY LEDbased WDM VLC system employing high-order CAP modulation and hybrid post equalizer[J].IEEE Photonics Journal,2015,7(6):1-1
[15]迟楠,王一光,王源泉.可见光通信多维复用技术研究[J].光学与光电技术,2014,12(4):1-6CHI Nan,WANG Yiguang,WANG Yuanquan.Research of multi-dimensional multiplexing schemes in visible light communication[J].Optics&Optoelectronic Technology,2014,12(4):1-6
[16]Wang Y Q,Chi N,Li R L,et al.Theoretical and simulation analysis of a novel multiple-input multipleoutput scheme over multimode fiber links with dual restricted launch techniques[J].Optical Engineering,2012,51(6):065002
[17]Zeng L B,O'Brien D C,Minh H L,et al.High data rate multiple input multiple output(MIMO)optical wireless communications using white led lighting[J].IEEE Journal on Selected Areas in Communications,2009,27(9):1654-1662
[18]Jivkova S,Hristov B A,Kavehrad M.Power-efficient multi spot diffuse multiple-input-multiple-output approach to broad-band optical wireless communications[J].IEEE Transactions on Vehicular Technology,2004,53(3):882-889
[19]Azhar A H,Tran T,O'Brien D.A Gigabit/s indoor wireless transmission using MIMO-OFDM visible-light communications[J].IEEE Photonics Technology Letters,2013,25(2):171-174
[20]Wang Y Q,Chi N.Indoor Gigabit 2×2 imaging multipleinput multiple-output visible light communication[J].Chinese Optics Letters,2014,12(10):100603
[21]Chi N,Shi J Y.Investigation on overlapping interference on VLC networks consisting of multiple LEDs[J].ICT Express,2015,1(2):63-66
[22]Shi J Y,Wang Y Q,Huang X X,et al.Enhanced performance employing STBC aided coding for LED based multiple input single output visible light communication network[J].Microwave and Optical Technology Letters,2015,57(12):2943-2946
[23]Shi J Y,Huang X X,Wang Y G,et al.Improved performance of a high speed 2×2 MIMO VLC network Based on EGC-STBC[C]∥European Conference on Optical Communication,2015:1-3
[24]3GPP.3GPP TR 36.211-v14.1.0.Evolved Universal Terrestrial Radio Access(E-UTRA):Physical channels and modulation(Release 14)[S].Europe:3rd Generation Partnership Project Technical Specification Group Radio Access Network,2016