Impact of in-band crosstalk signals with different duty-cycles in M-QAM optical coherent receivers

Pinheiro, Bruno R.; Rebola, Joao L.; Cancela, Luís

doi:10.1109/noc.2015.7238604

Cited by 6 publications

(10 citation statements)

References 10 publications

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“…2 our MGF based formulation gives almost the same results as Ho formulation [10]. Also, these results are in agreement with our Monte-Carlo simulation results [13] and with the experimental results reported in [11]. The Gaussian approximation as expected gives a larger penalty, in particular for a crosstalk level of -12 dB the Gaussian approximation predicts a penalty ~ 2 dB greater than the real value.…”

Section: A Single Interferer Scenariosupporting

confidence: 88%

“…In 2011, K.-P. Ho published an analytical work that evaluates the impact of this impairment on DP-QPSK systems considering a single interferer and an optical matched filter [10]. Furthermore, there are some studies, based on experimental and simulation tools that analyses the influence of in-band crosstalk in DP-M-ary Quadrature Amplitude Modulation (DP-M QAM) systems [11]- [13].…”

Section: • the Full-text Is Not Changed In Any Waymentioning

confidence: 99%

“…In Fig. 2 the SNR penalty as a function of the crosstalk level for the single interferer scenario is presented considering the MGF formulation derived in the previous section, the Monte-Carlo simulation reported in [13], the Gaussian approximation and the formalism presented by Ho in [10]. The SNR penalty is a widely used metric to quantify the crosstalk impact and is defined in this work as the increment in decibels in the SNR, required to maintain the error probability fixed at 10 -3 in the presence of crosstalk.…”

Section: A Single Interferer Scenariomentioning

confidence: 99%

See 2 more Smart Citations

Analytical tools for evaluating the impact of in-band crosstalk in DP-QPSK signals

Cancela

Sequeira

Pinheiro

et al. 2016

2016 21st European Conference on Networks and Optical Communications (NOC)

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An analytical tool based on the moment generating function of the receiver decision variable that can evaluate the impact of multiple in-band crosstalk signals in DP-QPSK (Dual-Polarization Quadrature Phase-Shift Keying) signals is presented. It is shown that when the number of interferers increases from 1 to 64 the crosstalk level, that assure a 2dB power penalty, becomes more stringent, -12 dB for the single interferer scenario and -15 dB for 64 interferers. The Gaussian approximation is also used for comparison purposes.

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Section: A Single Interferer Scenariosupporting

confidence: 88%

Section: • the Full-text Is Not Changed In Any Waymentioning

confidence: 99%

Section: A Single Interferer Scenariomentioning

confidence: 99%

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Analytical tools for evaluating the impact of in-band crosstalk in DP-QPSK signals

Cancela

Sequeira

Pinheiro

et al. 2016

2016 21st European Conference on Networks and Optical Communications (NOC)

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“…In [22] and [23], it is concluded that higher modulation format orders used in the OFDM subcarriers leads to lower in-band crosstalk tolerance of the OFDM DD receiver. These conclusions are similar to the ones presented in references [28] and [20], in which the impact of in-band crosstalk on the performance of optical communication systems with coherent detection due to different M -QAM crosstalk signals is assessed.…”

Section: Literature Reviewsupporting

confidence: 88%

Estimation of the OSNR Penalty Due to In-Band Crosstalk on the Performance of Virtual Carrier-Assisted Metropolitan OFDM Systems

Pinheiro

Rebola

Cartaxo

2018

Optics, Photonics and Laser Technology

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“…A residual margin of 0 dB is also considered. The MC simulation is performed as in [10] and the ASE noise and optical filter models are found in [11] and [12], respectively.…”

Section: A Impact Of Optical Filtering and Ase Noise In A Cascade Of Roadm Nodes With Lumped Amplificationmentioning

confidence: 99%

Exploring future large-scale ROADM architectures

Morao

Cancela

Rebola

2021

2021 Telecoms Conference (ConfTELE)

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Most of today's optical networks are based on reconfigurable optical add/drop multiplexers (ROADMs) nodes. However, current ROADM architectures have poor scalability due to limitations on the wavelength selective switches dimension. Hence, due to the constant increase in data traffic and the demand for more dynamic and flexible networks, current architectures might become a bottleneck in the foreseen large-scale ROADMs. In this work, several architectures for large-scale ROADMs proposed to overcome this bottleneck are studied in terms of hardware cost and in-band crosstalk generation and compared with large-scale ROADMs built with conventional architectures. We show that ROADMs based on a sub-system modular architecture, also known as interconnected architecture, exhibit a significant hardware cost reduction in relation to conventional architectures and are also advantageous regarding the in-band crosstalk generation. Moreover, in this work, an analysis of optical filtering effects, amplified spontaneous emission noise and in-band crosstalk impact in the performance of an optical network, with nodes based on the interconnected architecture, is performed through Monte-Carlo simulation.

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Impact of in-band crosstalk signals with different duty-cycles in M-QAM optical coherent receivers

Cited by 6 publications

References 10 publications

Analytical tools for evaluating the impact of in-band crosstalk in DP-QPSK signals

Analytical tools for evaluating the impact of in-band crosstalk in DP-QPSK signals

Estimation of the OSNR Penalty Due to In-Band Crosstalk on the Performance of Virtual Carrier-Assisted Metropolitan OFDM Systems

Exploring future large-scale ROADM architectures

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