Performance investigation of wavelength diversity based BPSK-SIM FSO system under Gamma-Gamma fading and misalignment error

被引：3

作者：

Srivastava, Varun ^{[1
]}

Mandloi, Abhilash ^{[1
]}

机构：

[1] Sardar Vallabhbhai Natl Inst Technol, Dept Elect Engn, Surat 395007, India

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2021年 / 53卷 / 11期

关键词：

Free space optical (FSO) communication; Wavelength diversity; Binary phase shift keying (BPSK); Subcarrier intensity modulation (SIM); Outage probability; Bit error rate (BER); STRONG ATMOSPHERIC-TURBULENCE; SPACE OPTICAL LINKS; TIME DIVERSITY; BER PERFORMANCE; CAPACITY; DOWNLINK;

D O I：

10.1007/s11082-021-03282-3

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Free space optics (FSO) is a high-speed underwater, terrestrial and satellite communication technology. There is no necessity to get a government license for operating these communication links. FSO system is always prone to some atmospheric challenges. The light beam propagates through an open atmosphere; the refractive index fluctuation due to atmospheric turbulence impacts its properties, thus, results in a fluctuating bit error rate (BER). We obtain the closed-form expressions to investigate the average BER, outage performance of an FSO system employing binary phase-shift keying (BPSK) with subcarrier intensity modulation (SIM) and wavelength diversity. The system performance is analyzed using closed-form expressions at various atmospheric turbulence levels, attenuation, and misalignment error. The results show that the wavelength diversity based BPSK-SIM FSO system offers enhanced performance than the single input single output system.

引用

页数：14

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