Modeling and Analysis of Nonlinear High-Speed Links

Chu, Xiuqin; Wang, Wenwu; Wang, Jun; Li, Yushan; Wu, Hank

doi:10.1109/isemc.2019.8825206

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The response of arbitrary input bit patterns cannot be constructed accurately by SBR. In [22], a technique of modeling and analysis for nonlinear high-speed links is proposed based on Simulink. Fig.…”

Section: A Novel Equalization Technique Based On Mbrmentioning

confidence: 99%

“…The advantage of this model is that it can flexibly adjust the nonlinear degree. The validation of the nonlinear high-speed model can be referred in [22].…”

Section: Simulation Verificationmentioning

confidence: 99%

“…The rise and fall time of the input signal is set as 10 ps and 20 ps, respectively. Another nonlinear behavior is the saturation characteristics of active component after CTLE, which is represented by a hyperbolic tangent function, shown in (22).…”

Section: Simulation Verificationmentioning

confidence: 99%

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A Novel Decision Feedback Equalization Structure for Nonlinear High-Speed Links

Chu

Wang

et al. 2020

IEEE Access

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As the degree of nonlinearity in high-speed links becomes more and more serious, traditional decision feedback equalization (DFE) which is based on linear time-invariant assumption can no longer eliminate the inter-symbol interference effectively. In this paper, the shortcomings of traditional DFE structure for nonlinear high-speed links are first analyzed. Then, the multi-bit response (MBR) method is proposed to accurately construct the bit stream responses of the nonlinear high-speed links. Lastly, a novel DFE structure based on the MBR method is presented to improve the signal quality of the nonlinear high-speed links. The accuracy of the proposed method is verified by the simulation based on a nonlinear high-speed link model. Compared with traditional DFE, the proposed DFE structure can significantly improve the signal quality of the nonlinear high-speed links. As the degree of nonlinearity increases, the advantage of the proposed DFE becomes more prominent. INDEX TERMS Decision feedback equalization (DFE), inter-symbol interference (ISI), multi-bit response, nonlinearity, signal integrity.

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Section: A Novel Equalization Technique Based On Mbrmentioning

confidence: 99%

“…The advantage of this model is that it can flexibly adjust the nonlinear degree. The validation of the nonlinear high-speed model can be referred in [22].…”

Section: Simulation Verificationmentioning

confidence: 99%