采用波分复用-波分复用双复用技术的 160 Gbps-60 GHz OFDM-MIMO RoFSO 传输性能分析

Q3 Engineering

Journal of Optical Communications Pub Date : 2023-12-15 DOI:10.1515/joc-2023-0300

Ankur Sood, Rahul Kaushik

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引用次数: 0

摘要

摘要提出了一种具有双复用功能的正交频分复用-自由空间光学无线电（OFDM-RoFSO）通信系统。通过在第一级使用波分复用（WDM）和在第二级使用偏振分复用（PDM），同时传输八个输入数据流。输入数据流 1-4 和 5-8 在通过 RoFSO 链路传输之前，被分配了同一组载波频率，即 193.1 太赫兹、193.3 太赫兹、193.5 太赫兹和 193.7 太赫兹，以及不同的极化水平（X 极化和 Y 极化）。该设计实现了 160 Gbps（4 × 2 × 20 Gbps）的总数据传输速率。利用所提出的系统，在测量系统误码率、Q 系数、信噪比和接收功率等的同时，对大气衰减和湍流条件影响下的信道性能进行了评估。在考虑单输入单输出（SISO）和多输入多输出（MIMO）FSO 配置的同时，分析了 WDM-PDM 双复用设计的信道串扰影响。总体分析预测，双复用系统可以轻松实现更高的传输速率和更高的容量水平。

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Performance analysis of 160 Gbps-60 GHz OFDM-MIMO RoFSO transmission with WDM-PDM dual multiplexing

Abstract An orthogonal frequency division multiplexed-radio over free space optics (OFDM-RoFSO) communication system with dual multiplexing is proposed. Eight input data streams are transmitted simultaneously by using wavelength division multiplexing (WDM) at level 1 and polarization division multiplexing (PDM) at level 2. Input data streams 1–4 and 5–8 are assigned with same set of carrier frequencies i.e. 193.1 THz, 193.3 THz, 193.5 THz and 193.7 THz and separate polarization levels (X and Y polarized) before transmitting through RoFSO link. A total data rate of 160 Gbps (4 × 2 × 20 Gbps) is achieved in this design. With proposed system, channel performance is evaluated under the influence of atmospheric attenuation and turbulence conditions while measuring system BER, Q-factor, SNR and received power etc. The effect of channel crosstalk is analysed for WDM-PDM dual multiplexed design while considering single input single output (SISO) and multiple input multiple output (MIMO) FSO configurations. The overall analysis predicts that a higher transmission rate and improved capacity levels can easily be achieved with dual multiplexed system.

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来源期刊

Journal of Optical Communications Engineering-Electrical and Electronic Engineering

CiteScore

2.90

自引率

0.00%

发文量

期刊介绍： This is the journal for all scientists working in optical communications. Journal of Optical Communications was the first international publication covering all fields of optical communications with guided waves. It is the aim of the journal to serve all scientists engaged in optical communications as a comprehensive journal tailored to their needs and as a forum for their publications. The journal focuses on the main fields in optical communications