Analysis of System Capacity and Spectral Efficiency of Fixed-Grid Network

Q3 Computer Science International Journal of Computer Networks and Communications Pub Date : 2023-09-28 DOI:10.5121/ijcnc.2023.15506

M, Adarsha, Malathi, S., Kumar, Santosh

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Abstract

In this article, the performance of a fixed grid network is examined for various modulation formats to estimate the system's capacity and spectral efficiency. The optical In-phase Quadrature Modulator (IQM) structure is used to build a fixed grid network modulation, and the homodyne detection approach is used for the receiver. Data multiplexing is accomplished using the Polarization Division Multiplexed (PDM) technology. 100 Gbps, 150 Gbps, and 200 Gbps data rates are transmitted under these circumstances utilizing various modulation formats. Various pre-processing and signal recovery steps are explained by using modern digital signal processing systems. The achieved spectrum efficiencies for PM-QPSK, PM-8 QAM, and PM-16 QAM, respectively, were 2, 3, and 4 (bits/s)/Hz. Different modulation like PM-QPSK, PM-8-QAM, and PM-16-QAM each has system capacities of 8-9, 12-13.5, and 16-18 Tbps and it reaches transmission distances of 3000, 1300, and 700 kilometers with acceptable Bit Error Rate (BER≤ 2× 10-3 ) respectively. Peak optical power for received signal detection and full width at half maximum is noted for the different modulations under a fixed grind network.

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固定电网系统容量与频谱效率分析

在本文中，研究了固定网格网络的各种调制格式的性能，以估计系统的容量和频谱效率。采用光学同相正交调制器(IQM)结构构建固定网格网络调制，接收机采用纯差检测方法。数据复用使用偏振分复用(PDM)技术来实现。在这些情况下，利用各种调制格式传输100gbps、150gbps和200gbps数据速率。利用现代数字信号处理系统解释了各种预处理和信号恢复步骤。PM-QPSK、PM-8 QAM和PM-16 QAM的频谱效率分别为2、3和4 (bits/s)/Hz。PM-QPSK、PM-8-QAM和PM-16-QAM的系统容量分别为8- 9,12 -13.5和16- 18tbps，传输距离分别为3000公里、1300公里和700公里，可接受的误码率(BER≤2× 10-3)。在固定研磨网络下，对不同调制方式的接收信号检测的峰值光功率和半最大全宽进行了说明。

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来源期刊

International Journal of Computer Networks and Communications Computer Science-Computer Networks and Communications

CiteScore

1.60

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0.00%

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期刊介绍： The International Journal of Computer Networks & Communications (IJCNC) is a bi monthly open access peer-reviewed journal that publishes articles which contribute new results in all areas of Computer Networks & Communications.The journal focuses on all technical and practical aspects of Computer Networks & data Communications. The goal of this journal is to bring together researchers and practitioners from academia and industry to focus on advanced networking concepts and establishing new collaborations in these areas. Authors are solicited to contribute to this journal by submitting articles that illustrate research results, projects, surveying works and industrial experiences that describe significant advances in the Computer Networks & Communications.