Performance Study of MIMO-OSTBC Parallel Relay FSO System Based on GFDM

IF 1.6 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Chinese Journal of Electronics Pub Date : 2024-03-01 DOI:10.23919/cje.2022.00.069

Rui Zhou;Yong Wang;Yi Wang;Yaxin Zhang

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引用次数: 0

Abstract

This paper investigates the performance of a new generalized frequency division multiplexing (GFDM) parallel relay free space optical (FSO) communication system using multi-input multi-output (MIMO) orthogonal space-time block codes (OSTBC) scheme. Under the M distribution atmospheric turbulence, taking into account the triple effects of irradiance, pointing errors and path loss, the mathematical expression of system symbol error rate is derived with the help of Meijer G-function. The symbol error performance of GFDM is compared with on-off keying, Gaussian minimum shift keying, polarization shift keying and orthogonal frequency division multiplexing (OFDM) modulation methods. The effects of the MIMO-OSTBC parallel relay scheme on the GFDM system including filter roll down coefficient, the number of transmitting and receiving antennas, the number of relays, normalized beamwidth and jitter variance are analyzed, and the numerical results are verified by Monte Carlo simulation. This work provides a good foundation for engineering applications.

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基于 GFDM 的 MIMO-OSTBC 并行中继 FSO 系统性能研究

本文研究了使用多输入多输出（MIMO）正交时空块编码（OSTBC）方案的新型广义频分复用（GFDM）并行中继自由空间光（FSO）通信系统的性能。在 M 分布大气湍流条件下，考虑到辐照度、指向误差和路径损耗的三重影响，利用 Meijer G 函数推导出了系统符号误差率的数学表达式。GFDM 的符号误差性能与开关键控、高斯最小移位键控、偏振移位键控和正交频分复用（OFDM）调制方法进行了比较。分析了 MIMO-OSTBC 并行中继方案对 GFDM 系统的影响，包括滤波器滚降系数、发射和接收天线数量、中继数量、归一化波束宽度和抖动方差，并通过蒙特卡罗仿真验证了数值结果。这项工作为工程应用奠定了良好的基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chinese Journal of Electronics 工程技术-工程：电子与电气

CiteScore

3.70

自引率

16.70%

发文量

342

审稿时长

12.0 months

期刊介绍： CJE focuses on the emerging fields of electronics, publishing innovative and transformative research papers. Most of the papers published in CJE are from universities and research institutes, presenting their innovative research results. Both theoretical and practical contributions are encouraged, and original research papers reporting novel solutions to the hot topics in electronics are strongly recommended.