Performance Analysis of Free Space Optical System Over Inverse Gaussian Gamma Turbulence Channel

IF 2.5 4区计算机科学 Q3 TELECOMMUNICATIONS Transactions on Emerging Telecommunications Technologies Pub Date : 2024-10-21 DOI:10.1002/ett.70009

Rekha Rani, N. Jayanthi, Anup K. Mandpura

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Abstract

Free space optical (FSO) communication is a proficient technology with potential applications in the next generation of wireless communication. This article evaluates the performance of the FSO system under inverse Gaussian gamma (IGG) fading. A novel closed-form equation for the cumulative distribution function (CDF) of the received signal-to-noise ratio (SNR) is presented by employing an intensity modulation/direct detection (IM/DD) scheme. The analytical expressions for various performance metrics such as outage probability (OP), amount of fading (AOF), and average bit error probability (ABEP) are derived for various digital modulation schemes based on the system's probability density function (PDF) and CDF. Additionally, this article presents an upper bound on OP and asymptotic analysis for the performance metrics to gain deeper insights. It is revealed that the small-scale eddy turbulence parameter can affect the diversity order by a factor of β/2. The results demonstrate that atmospheric turbulence considerably reduces the system's performance. Finally, Monte-Carlo simulation is performed to ascertain the correctness of the derived mathematical expressions.

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反高斯伽马湍流信道上的自由空间光学系统性能分析

自由空间光学（FSO）通信是一种成熟的技术，在下一代无线通信中具有潜在的应用价值。本文评估了 FSO 系统在反高斯伽马（IGG）衰减下的性能。通过采用强度调制/直接检测（IM/DD）方案，提出了接收信噪比（SNR）累积分布函数（CDF）的新型闭式方程。根据系统的概率密度函数 (PDF) 和 CDF，推导出了各种数字调制方案的各种性能指标的解析表达式，如中断概率 (OP)、衰减量 (AOF) 和平均比特误差概率 (ABEP)。此外，本文还提出了 OP 的上界，并对性能指标进行了渐近分析，以获得更深入的见解。研究发现，小尺度涡流湍流参数会以 β/2 的系数影响分集阶。结果表明，大气湍流大大降低了系统的性能。最后，进行了蒙特卡洛模拟，以确定推导出的数学表达式的正确性。

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来源期刊

Transactions on Emerging Telecommunications Technologies TELECOMMUNICATIONS-

CiteScore

8.90

自引率

13.90%

发文量

249

期刊介绍： ransactions on Emerging Telecommunications Technologies (ETT), formerly known as European Transactions on Telecommunications (ETT), has the following aims: - to attract cutting-edge publications from leading researchers and research groups around the world - to become a highly cited source of timely research findings in emerging fields of telecommunications - to limit revision and publication cycles to a few months and thus significantly increase attractiveness to publish - to become the leading journal for publishing the latest developments in telecommunications