室内无线光通信正交空时编码及调制技术
|
摘要
在无线光通信中,调制和编码及其设计方案是实现直射信道与漫射信道容量优化的关键技术。采用4-脉冲位置调制和正交空时编码技术是最佳方案。因为这种调制和编码技术优于L-脉冲位置调制方案,可以传输更多信息。4-脉冲位置调制正交空时编码是一个基于MIMO的2×2方案,即有两个发射器和两个接收器,构成一个双信道通信系统。其工作原理是:当直射信道处于工作状态时,漫射信道处于等待状态。当直射信道被障碍物阻断时,立即转到漫射信道。二者的工作状态可以自由切换。当然,如果需要,两者都可以处于工作状态。这使得无线光通信能逾越障碍,实现不间断通信。
In wireless optical communication,modulation and coding and its design scheme are the key technologies to realize the optimization of direct incident channel and diffuse channel and capacity. Using4-PPM and orthogonal space-time coding technology is the best scheme. Because this modulation and coding technology can transmit more information than L-PPM. 4-pulse position modulation and orthogonal space-time coding are a 2 × 2 scheme based on MIMO. That is,there are two transmitters and two receivers,which constitute a dual-channel communication system. The working principle is that when the direct channel is in a working state,the diffusing channel is in a waiting state. When the direct incident channel is blocked by an obstruction,immediately transfer to the diffuse channel. The working state of the two can be freely switched. Of course,both can be in a working state if needed. This enables wireless optical communication to overcome obstacles to achieve uninterrupted communication.
In wireless optical communication,modulation and coding and its design scheme are the key technologies to realize the optimization of direct incident channel and diffuse channel and capacity. Using4-PPM and orthogonal space-time coding technology is the best scheme. Because this modulation and coding technology can transmit more information than L-PPM. 4-pulse position modulation and orthogonal space-time coding are a 2 × 2 scheme based on MIMO. That is,there are two transmitters and two receivers,which constitute a dual-channel communication system. The working principle is that when the direct channel is in a working state,the diffusing channel is in a waiting state. When the direct incident channel is blocked by an obstruction,immediately transfer to the diffuse channel. The working state of the two can be freely switched. Of course,both can be in a working state if needed. This enables wireless optical communication to overcome obstacles to achieve uninterrupted communication.
引文
[1]He Peinan.A New Design of Devices and Links Configuration for Indoor Optical Wireless Communications[D].Coventry UK:University of Warwick,2011.
[2]Banerjee Sharbari.A Simple Analytical Design Approach to Space Time Trellis Codes[J].Wireless Pers Commun,2014,75:1141-1154.
[3]Shr Kai-Ting,Chen Hong-Du.A Introduction to Trellis-Coded Modulation With Applications[J].IEEE Transactions on Circuits and Systems,2010,57(4):873-885.
[4]Gao Yuan,Cai Yunlong,Shi Qingjiang,et al.Joint transceiver designs for secure communications over MIMO relay[C].Shanghai,China:IEEE International Conference on Acoustics,Speech and Signal Processing,2016:3851-3855.
[5]Wang Bo,Mu Pengcheng,Wang Chao,et al.Combining Dirty-paper Coding and Artificial Noise for Secrecy[C].Shanghai,China:IEEE International Communication on Acoustics,Speech and Signal Processing,2016:2034-2038.
[6]YI Ming,JI Xinsheng,Huang Kaizhi,et al.A Method Based on Puncturing Polar Codes for Physical Layer Security[J].Journal of Electronics&Information Technology,2014,36(12):2835-2841.
[7]Qin Zhichao,Zhou Zheng,Zhao Xiaochuan.A Distributed Source Coding Algorithm for Clustering Wireless Sensor Networks[J].Journal of Electronics&Information Technology,2013,35(2):328-334.
[8]Wei Yipeng,Ulukus S.Polar Coding for the General Wiretap Channel with Extensions to Multiuser Scenarios[J].IEEE Journal on Selected Areas in Communications,2016,34(2):278-291.
[9]Wang Wei,Teh Kah Chan,Li Kwok Hung.Artificial Noise Aided Physical Layer Security in Multi-antenna Small-cell Networks[J].IEEE Transactions on Information Forensics and Security,2017,12(6):1470-1482.
[10]Abdullah Aljohani,Babar Z,Ng SX,Hanzo L.Distributed Source-channel Coding using Reduced-complexity Syndromebased[J].TTCM.IEEE Communications Letters,2016,20(10):2095-2098.
[11]Ramirez-Iniguez R,Idrus S M,Sun Z.Optical Wireless Communications:IR for Wireless Connectivity[J].Optical Society of America,2017,4(1):66-67.
[12]Kaushal Hemani,Jain V K,Kar Subrat.Overview of Wireless Optical Communication Systems[J].Peer-to-Peer Networking and Applications.2017,10(3):421-424.
[13]Ramirez-Iniguez Roberto,Idrus Sevia M,Sun Ziran.Optical Wireless Communication:IR for Wireless Connectivity[M].Boca Raton,Floeida,USA:Auerbach Publishers,Incorporated,2008.
[2]Banerjee Sharbari.A Simple Analytical Design Approach to Space Time Trellis Codes[J].Wireless Pers Commun,2014,75:1141-1154.
[3]Shr Kai-Ting,Chen Hong-Du.A Introduction to Trellis-Coded Modulation With Applications[J].IEEE Transactions on Circuits and Systems,2010,57(4):873-885.
[4]Gao Yuan,Cai Yunlong,Shi Qingjiang,et al.Joint transceiver designs for secure communications over MIMO relay[C].Shanghai,China:IEEE International Conference on Acoustics,Speech and Signal Processing,2016:3851-3855.
[5]Wang Bo,Mu Pengcheng,Wang Chao,et al.Combining Dirty-paper Coding and Artificial Noise for Secrecy[C].Shanghai,China:IEEE International Communication on Acoustics,Speech and Signal Processing,2016:2034-2038.
[6]YI Ming,JI Xinsheng,Huang Kaizhi,et al.A Method Based on Puncturing Polar Codes for Physical Layer Security[J].Journal of Electronics&Information Technology,2014,36(12):2835-2841.
[7]Qin Zhichao,Zhou Zheng,Zhao Xiaochuan.A Distributed Source Coding Algorithm for Clustering Wireless Sensor Networks[J].Journal of Electronics&Information Technology,2013,35(2):328-334.
[8]Wei Yipeng,Ulukus S.Polar Coding for the General Wiretap Channel with Extensions to Multiuser Scenarios[J].IEEE Journal on Selected Areas in Communications,2016,34(2):278-291.
[9]Wang Wei,Teh Kah Chan,Li Kwok Hung.Artificial Noise Aided Physical Layer Security in Multi-antenna Small-cell Networks[J].IEEE Transactions on Information Forensics and Security,2017,12(6):1470-1482.
[10]Abdullah Aljohani,Babar Z,Ng SX,Hanzo L.Distributed Source-channel Coding using Reduced-complexity Syndromebased[J].TTCM.IEEE Communications Letters,2016,20(10):2095-2098.
[11]Ramirez-Iniguez R,Idrus S M,Sun Z.Optical Wireless Communications:IR for Wireless Connectivity[J].Optical Society of America,2017,4(1):66-67.
[12]Kaushal Hemani,Jain V K,Kar Subrat.Overview of Wireless Optical Communication Systems[J].Peer-to-Peer Networking and Applications.2017,10(3):421-424.
[13]Ramirez-Iniguez Roberto,Idrus Sevia M,Sun Ziran.Optical Wireless Communication:IR for Wireless Connectivity[M].Boca Raton,Floeida,USA:Auerbach Publishers,Incorporated,2008.