Performance evaluation of FSO system using wavelength and time diversity over malaga turbulence channel with pointing errors

被引：45

作者：

Balaji, K. A. ^{[1
]}

Prabu, K. ^{[1
]}

机构：

[1] Vellore Inst Technol, Sch Elect Engn, Vellore 632014, Tamil Nadu, India

来源：

OPTICS COMMUNICATIONS | 2018年 / 410卷

关键词：

Pointing error; M-distribution; Polarization shift keying; Wavelength diversity; Time diversity; STRONG ATMOSPHERIC-TURBULENCE; OPTICAL WIRELESS LINKS; SPATIAL DIVERSITY; GAMMA-GAMMA; MODULATION; CAPACITY;

D O I：

10.1016/j.optcom.2017.11.006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

There is an immense demand for high bandwidth and high data rate systems, which is fulfilled by wireless optical communication or free space optics (FSO). Hence FSO gained a pivotal role in research which has a added advantage of both cost-effective and licence free huge bandwidth. Unfortunately the optical signal in free space suffers from irradiance and phase fluctuations due to atmospheric turbulence and pointing errors which deteriorates the signal and degrades the performance of communication system over longer distance which is undesirable. In this paper, we have considered polarization shift keying (POLSK) system applied with wavelength and time diversity technique over Malaga(M) distribution to mitigate turbulence induced fading. We derived closed form mathematical expressions for estimating the systems outage probability and average bit error rate (BER). Ultimately from the results we can infer that wavelength and time diversity schemes enhances these systems performance. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：643 / 651

页数：9

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