室内无线光通信调制方式的性能研究

J4 ›› 2012, Vol. 29 ›› Issue (5): 622-628.

室内无线光通信调制方式的性能研究

徐荃周春彭金花邵慧

安徽建筑工业学院电子与信息工程学院，安徽合肥 230601

收稿日期:2011-08-28 修回日期:2011-12-26 出版日期:2012-09-28 发布日期:2012-09-02
通讯作者: 徐荃（1980－），女，安徽桐城人，研究生，讲师，主要研究方向为无线光通信。 E-mail:xuquan_crystal@163.com
基金资助:
高等学校省级优秀青年人才基金项目（2009SQRZ099）；南京邮电大学图像处理与图像信息省重点实验室开放课题（ZK209001）；安徽建筑工业学院硕士科研启动基金项目（K02395）

Performance research of modulation schemes for indoor wireless optical communication

XU Quan, ZHOU Chun, PENG Jin-hua, SHAO Hui

School of Electronics and Information Engineering, Anhui University of Architecture, Hefei 230601, China

Received:2011-08-28 Revised:2011-12-26 Published:2012-09-28 Online:2012-09-02

摘要/Abstract

摘要：

为了研究适用于室内无线光通信的调制方式，分析了开关键控（OOK）、脉冲位置调制（PPM）、差分脉冲位置调制（DPPM）、数字脉冲间隔调制（DPIM）和双头脉冲间隔调制（DH-PIM）的调制结构，详细推导了各调制方式的平均发射功率、带宽需求、传输容量和误包率的公式，并进行了仿真分析。结果表明，PPM的平均发射功率最小，DPIM、DPPM和DH-PIM次之，OOK的平均发射功率最大；OOK的带宽需求最小，DH-PIM、DPPM和DPIM次之，PPM的带宽需求最大；DPPM的传输容量最大，DPIM和DH-PIM次之，OOK和PPM的传输容量最小；在相同调制阶数的条件下，PPM的误包率最小，DPIM、DPPM和DH-PIM次之，OOK的误包率最大。

关键词: 光通信, 调制方式, 平均发射功率, 带宽需求, 传输容量, 误包率

Abstract:

In order to research modulation schemes suitable for indoor wireless optical communication, the modulation structures of five modulation schemes (OOK, PPM, DPPM, DPIM and DH-PIM) are analyzed, the equations of average transmitting power, bandwidth requirement, transmission capacity and packet error rate are derived in detail, and the simulation results are given. In terms of average transmitting power, PPM achieves the smallest followed by DPIM, DPPM and DH-PIM, OOK achieves the biggest. With regard to bandwidth requirement, OOK achieves the smallest followed by DH-PIM, DPPM and DPIM, PPM achieves the biggest. As for transmission capacity, DPPM achieves the biggest followed DPIM and DH-PIM, OOK and PPM achieves the smallest. Under the condition of the same modulation level, PPM achieves the smallest followed by DPIM, DPPM and DH-PIM, OOK achieves the biggest on the part of packet error rate.

Key words: optical communication, modulation scheme, average transmitting power, bandwidth requirement, tansmission capacity, packet error rate

中图分类号:

TN929.12

徐荃周春彭金花邵慧. 室内无线光通信调制方式的性能研究[J]. J4, 2012, 29(5): 622-628.

XU Quan, ZHOU Chun, PENG Jin-hua, SHAO Hui. Performance research of modulation schemes for indoor wireless optical communication[J]. J4, 2012, 29(5): 622-628.

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