Autonomous Fault Prediction in Coaxial Cable Data Networks (DOCSIS)

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DOCSIS is a telecommunications standard for delivering data and TV channels from a cable modem termination system (CMTS)**to a home cable modem. DOCSIS uses a well-known feature called pre-equalization. Pre-equalization is accomplished by**analyzing input signal quality at CMTS. It determines the correction that a cable modem needs to apply to the signal before**transmitting it to overcome upstream impairments. The CMTS then sends equalizer values to the cable modem to update its preequalizer.**This will result in significant improvement in upstream signal to noise ratio (SNR), which in turn translates to a better**quality of experience to the subscriber. Proactive Network Maintenance (PNM) tools monitors cable modems and collects preequalizer**information from all of them. The pre-equalizer value from each modem reveals information regarding what type of**impairments each modem may have. In this project we will extend Clearcables Connects' PNM tool to continuously monitor**DOCSIS networks, to generate early warning indicators that identify changes in cable lines or plants and to predict faults.**