Analysis of BER Degradation Owing to Multiple Crosstalk Channels in Optical QPSK/QAM Signals
Summary :
Inter-channel crosstalk is one of the limiting factors in multichannel optical systems. This paper presents a theoretical analysis of the bit-error-rate (BER) performance of quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) signals influenced by multiple crosstalk channels. The field distribution of multiple crosstalk channels in the constellation map is calculated. The BER of the QPSK/QAM signal, onto which the crosstalk light is superimposed, is then evaluated for a varying number of crosstalk channels under the condition that the total crosstalk power is constant. The results quantitatively confirm that as the channel number increases, the BER degradation caused by crosstalk light approaches that caused by Gaussian noise light. It is also confirmed that the degradations caused by crosstalk light and Gaussian light are similar for QAM signals of high-level modulation.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E104-B No.4 pp.370-377
- Publication Date
- 2021/04/01
- Publicized
- 2020/09/28
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2020EBP3098
- Type of Manuscript
- PAPER
- Category
- Fiber-Optic Transmission for Communications
Authors
Kyo INOUE
Osaka University
Keyword
Latest Issue
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Kyo INOUE, "Analysis of BER Degradation Owing to Multiple Crosstalk Channels in Optical QPSK/QAM Signals" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 4, pp. 370-377, April 2021, doi: 10.1587/transcom.2020EBP3098.
Abstract: Inter-channel crosstalk is one of the limiting factors in multichannel optical systems. This paper presents a theoretical analysis of the bit-error-rate (BER) performance of quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) signals influenced by multiple crosstalk channels. The field distribution of multiple crosstalk channels in the constellation map is calculated. The BER of the QPSK/QAM signal, onto which the crosstalk light is superimposed, is then evaluated for a varying number of crosstalk channels under the condition that the total crosstalk power is constant. The results quantitatively confirm that as the channel number increases, the BER degradation caused by crosstalk light approaches that caused by Gaussian noise light. It is also confirmed that the degradations caused by crosstalk light and Gaussian light are similar for QAM signals of high-level modulation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020EBP3098/_p
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@ARTICLE{e104-b_4_370,
author={Kyo INOUE, },
journal={IEICE TRANSACTIONS on Communications},
title={Analysis of BER Degradation Owing to Multiple Crosstalk Channels in Optical QPSK/QAM Signals},
year={2021},
volume={E104-B},
number={4},
pages={370-377},
abstract={Inter-channel crosstalk is one of the limiting factors in multichannel optical systems. This paper presents a theoretical analysis of the bit-error-rate (BER) performance of quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) signals influenced by multiple crosstalk channels. The field distribution of multiple crosstalk channels in the constellation map is calculated. The BER of the QPSK/QAM signal, onto which the crosstalk light is superimposed, is then evaluated for a varying number of crosstalk channels under the condition that the total crosstalk power is constant. The results quantitatively confirm that as the channel number increases, the BER degradation caused by crosstalk light approaches that caused by Gaussian noise light. It is also confirmed that the degradations caused by crosstalk light and Gaussian light are similar for QAM signals of high-level modulation.},
keywords={},
doi={10.1587/transcom.2020EBP3098},
ISSN={1745-1345},
month={April},}
Copy
TY - JOUR
TI - Analysis of BER Degradation Owing to Multiple Crosstalk Channels in Optical QPSK/QAM Signals
T2 - IEICE TRANSACTIONS on Communications
SP - 370
EP - 377
AU - Kyo INOUE
PY - 2021
DO - 10.1587/transcom.2020EBP3098
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2021
AB - Inter-channel crosstalk is one of the limiting factors in multichannel optical systems. This paper presents a theoretical analysis of the bit-error-rate (BER) performance of quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) signals influenced by multiple crosstalk channels. The field distribution of multiple crosstalk channels in the constellation map is calculated. The BER of the QPSK/QAM signal, onto which the crosstalk light is superimposed, is then evaluated for a varying number of crosstalk channels under the condition that the total crosstalk power is constant. The results quantitatively confirm that as the channel number increases, the BER degradation caused by crosstalk light approaches that caused by Gaussian noise light. It is also confirmed that the degradations caused by crosstalk light and Gaussian light are similar for QAM signals of high-level modulation.
ER -
English
