BPSK based subcarrier intensity modulated free space optical system in combined strong atmospheric turbulence

OPTICS COMMUNICATIONS

卷:305

Article

Prabu, K.¹  Bose, Sumanta¹  Kumar, D. Sriram¹ 

[1] Natl Inst Technol, Dept Elect & Commun Engn, Tiruchirappalli 620015, Tamil Nadu, India

关键词: Free space optics;    Bit error rate;    Channel capacity;    Outage probability;    Subcarrier intensity modulation;    Atmospheric turbulence;   

DOI  :  10.1016/j.optcom.2013.04.056

来源: Elsevier

【 摘 要 】

In this paper the performance of a free space optical (FSO) communication system is analyzed by considering heavy atmospheric losses such as scattering, absorption, channel fading and misalignment fading. For the analysis, subcarrier intensity modulated free space optical (SIM-FSO) communication system using binary phase shift keying (BPSK) is employed. The bit error rate (BER), channel capacity and outage probability of the radiated signal are then investigated over a K-distributed mutual slow fading turbulence channel with illustrative 2D and 3D plots. Novel closed-form analytical expressions are derived for the combined strong turbulent channel model, average BER, channel capacity and outage probability for the considered communication system. (C) 2013 Elsevier B.V. All rights reserved.

【 授权许可】

Free