无线光通信新型组合脉冲调制性能分析

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 空间激光信息技术研究中心

	无线光通信新型组合脉冲调制性能分析
	刘宏展 ; 廖仁波 ; 孙建锋 ; 刘立人
刊名	光学学报
	2015
卷号	35 期号:7 页码:706004
其他题名	Performance Analysis of New Hybrid Pulse Modulation Scheme in Optical Wireless System
通讯作者	Liu Hongzhan, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, Guangdong 510006, China. ; Liao Renbo, Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, Guangdong 510006, China. ; Sun Jianfeng, Key Laboratory Space Laser Communication and Detection Technique, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Liu Liren, Key Laboratory Space Laser Communication and Detection Technique, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
中文摘要	调制技术是影响无线光通信质量的重要因素之一,探索合适的调制方式是无线光通信的内在需要,为此,全面深入分析不同新型组合脉冲调制的性能。详细地分析了脉冲位置调制(PPM)和数字脉冲间隔调制(DPIM)等传统调制方式,以及脉冲位置宽度调制(PPWM)、差分脉冲位置宽度调制(DPPWM)、双幅度脉冲位置调制(DAPPM)和双幅度脉冲间隔调制(DAPIM)等新型组合调制方式的符号结构;全面比较了以上调制方式的平均发射功率和带宽需求;在给定模型下分析了它们的差错性能。数值结果表明:DAPPM的功率利用率最好,DPPWM的功率效率最低。当二进制比特位M取一定值时,PPM的带宽利用率最低,DPPWM的带宽利用率最高;随着M的增加,DAPPM的带宽效率与DPIM的带宽效率非常接近。而从差错性能看,在相同的信噪比R_(SN)条件下,当M取值一定时,DAPPM的误包率与PPM接近,均优于其他组合调制方式,随着M或R_(SN)增大,系统误包率逐渐减少;同时,通过增大PPWM的r参数、减少DAPPM的 alpha 参数,可适当改善差错性能。因此,要根据实际系统的要求选择合适的调制方式。
英文摘要	The modulation technique is one of the important factors affected the quality of optical wireless communication. It need to find the appropriate modulation scheme, and it is necessary to analyze the performances of different pulse modulation schemes completely and deeply. The symbol structures of not only traditional modulation scheme like pulse position modulation (PPM) and digital pulse interval modulation (DPIM) but also new hybrid modulation scheme such as pulse position width modulation (PPWM), differential pulse position width modulation (DPPWM), dual-amplitude pulse position modulation and dual-amplitude pulse interval modulation (DAPIM) are analyzed in detail. The average transmission power and bandwidth efficiency for these above modulation schemes are also analyzed. At last, the error performances of these different modulation schemes are derived in detail. The numerical results show that the power utilization of DAPPM is the best and DPPWM's is the worst; when the value of binary bits M is given, the bandwidth utilization of DPPWM is the best, but PPM's is the worst. With the increase of M, the bandwidth utilization of DAPPM is near to DPIM's. When the values of M and signal to noise ratio R_(SN) are given, the packet error rate of DAPPM is near to PPM's, but they are better than the others. The packet error rate is gradually reduced with the increase of M and R_(SN). At the same time, through the enlargement of r or the decrease of alpha, the error performances of PPWM and DAPPM are partly improved. Consequently, the appropriate modulation scheme is need to be selected according to the system's demand.
收录类别	EI
原文出处	http://www.opticsjournal.net
语种	中文
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/13931]
专题	上海光学精密机械研究所_空间激光信息技术研究中心
作者单位	1.刘宏展, 华南师范大学, 广东省微纳光子功能材料与器件重点实验室, 广州, 广东 510006, 中国. 2.廖仁波, 华南师范大学, 广东省微纳光子功能材料与器件重点实验室, 广州, 广东 510006, 中国. 3.孙建锋, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国. 4.刘立人, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国.
推荐引用方式 GB/T 7714	刘宏展,廖仁波,孙建锋,等. 无线光通信新型组合脉冲调制性能分析[J]. 光学学报,2015,35(7):706004.
APA	刘宏展,廖仁波,孙建锋,&刘立人.(2015).无线光通信新型组合脉冲调制性能分析.光学学报,35(7),706004.
MLA	刘宏展,et al."无线光通信新型组合脉冲调制性能分析".光学学报 35.7(2015):706004.