多调制方式下的强度叠加编码多发多收大气光通信系统性能分析

赵顾颢; 赵尚弘; 蒙文; 王翔; 朱子行

doi:doi:10.3788/aos201232.0206001

光学学报, 2012, 32 (2): 0206001, 网络出版: 2012-01-11

多调制方式下的强度叠加编码多发多收大气光通信系统性能分析

Analysis of Free Space Optical Muttiple Input Multiple Output Communication Based on Intensity Superposition Coding at Different Modulations

论文大纲

赵顾颢 ^*赵尚弘蒙文王翔朱子行

作者单位

空军工程大学电讯工程学院, 陕西西安 710077

摘要

对开关键控（OOK）、脉冲位置调制（PPM）、差分脉冲位置调制(DPPM)和数字脉冲间隔调制(DPIM)下强度叠加编码多发多收(MIMO)光通信系统的性能进行了比较分析。研究表明：随着调制阶数的提高，后三种调制在平均发射功率需求方面较OOK调制有很大优势，但是相应的传输容量却有所下降。在差错性能方面，OOK调制在接收功率较低时误包率相对其它三种调制要小，当接收功率提高到一定程度时，PPM，DPPM和DPIM调制相对OOK调制均体现出了3~10 dB的误包率优势。

Abstract

Under the modulations of on-off keying (OOK), pulse-position modulation (PPM), differential pulse-position modulation (DPPM) and digital pulse interval modulation (DPIM), the intensity superposition coding multiple inpust multiple output (MIMO) optical communication system is compared and analyzed. With the improvement of modulation order, the results demonstrate that the latter three modulations have greater advantage than OOK modulation in the average transmission power, but the corresponding transmission capacity has declined. In the error performance, OOK modulation′s packet error rate is smaller than other three modulations in receiving low power. But when the received power is increased to a certain level, PPM, DPPM and DPIM modulations have the advantage of the 3~10 dB packet error rate to OOK modulation.

参考文献

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赵顾颢, 赵尚弘, 蒙文, 王翔, 朱子行. 多调制方式下的强度叠加编码多发多收大气光通信系统性能分析[J]. 光学学报, 2012, 32(2): 0206001. Zhao Guhao, Zhao Shanghong, Meng Wen, Wang Xiang, Zhu Zhihang. Analysis of Free Space Optical Muttiple Input Multiple Output Communication Based on Intensity Superposition Coding at Different Modulations[J]. Acta Optica Sinica, 2012, 32(2): 0206001.

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