Performance Analysis of Coherent Optical Communication System for M-QAM Higher Modulation Level

被引：3

作者：

Kaur A. ^{[1
]}

Dewra S. ^{[1
]}

机构：

[1] Department of Electronics and Communication Engineering, Shaheed Bhagat Singh State Technical Campus, Ferozepur, Punjab

来源：

Journal of Optical Communications | 2016年 / 37卷 / 04期

关键词：

BER; higher order modulation; quadrature amplitude modulation; quality factor;

D O I：

10.1515/joc-2015-0095

中图分类号：

学科分类号：

摘要：

In this paper, performance of QAM sequence generator in coherent optical communication system is investigated. Results are obtained for different square constellation types such as 4-QAM, 16-QAM, 64-QAM and 256-QAM using Hyperbolic-secant pulse generator. For the distance of 120 km and bit rate of 10 Gbps, it is investigated that 4-QAM provides maximum Q factor of 33.93 and minimum BER of 6e-253, whereas 16-QAM, 64-QAM & 256-QAM provides Q factor of 31.47, 22.85 & 8 and BER of 5e-218, 3e-116 & 2e-16, respectively. Decrement in Quality factor and increase in BER are observed with increment in the M-value of QAM. It is further observed that Eye opening decreases with increment in levels of QAM. © 2016 by De Gruyter.

引用

页码：371 / 374

页数：3

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