High-Speed Wireline Links—Part I: Modeling

Abstract

In a wireline link, we wish to model a wide variety of architectures and optimize their parameters, such as the feedforward equalizer and decision feedback equalizer tap coefficients, continuous-time linear equalizer frequency response, termination impedances, and possibly maximum-likelihood sequence estimation parameters, for a given channel and within a given set of constraints as dictated by the application requirements so as to minimize the link’s bit error rate. The modulation can be any of the PAM signaling schemes, such as NRZ or 4-PAM. To this end, we first model a general link architecture in Part I, and then optimize the link parameters in Part II.

Keywords

• Bit error rate
• channel attenuation
• link modeling
• link optimization
• long reach (LR)
• performance assessment