Subcarrier Intensity Modulated Optical Wireless Communications in Atmospheric Turbulence With Pointing Errors

被引：45

作者：

Song, Xuegui ^{[1
]}

Yang, Fan ^{[1
]}

Cheng, Julian ^{[1
]}

机构：

[1] Univ British Columbia, Sch Engn, Kelowna, BC, Canada

来源：

JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING | 2013年 / 5卷 / 04期

关键词：

Atmospheric turbulence; Optical wireless communications; Pointing errors; Subcarrier intensity modulation; FSO LINKS; PERFORMANCE; OPTIMIZATION; CHANNELS; PPM;

D O I：

10.1364/JOCN.5.000349

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

An optical wireless communication system using subcarrier intensity modulation is analyzed for gamma-gamma turbulence channels with pointing errors. We study the error rate performance of such a system employing M-ary phase-shift keying, differential phase-shift keying, and noncoherent frequency-shift keying. Highly accurate error rate approximations are derived using a series expansion approach. Furthermore, outage probability expressions are obtained for such a system. Asymptotic error rate and outage probability analyses are also presented. Our asymptotic analysis reveals some unique transmission characteristics of such a system. Our findings suggest that pointing error compensation is necessary as pointing errors can severely degrade the error rate and outage probability performance of an uncompensated system.

引用

页码：349 / 358

页数：10

共 37 条

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