Autonomous Fault Prediction in Coaxial Cable Data Networks (DOCSIS)

同轴电缆数据网络 (DOCSIS) 中的自主故障预测

• 批准号: 522342-2018
• 负责人: Zheng, Rong
• 金额: $ 1.82万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=669814
• 关键词: Autonomous; Fault; Prediction; Coaxial; Cable

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.**

DOCSIS是一种电信标准，用于将数据和电视频道从电缆调制解调器终端系统（CMTS）** 传送到家庭电缆调制解调器。DOCSIS使用一个众所周知的功能，称为预均衡。预均衡是通过 ** 分析CMTS的输入信号质量来完成的。它确定电缆调制解调器在传输信号之前需要对信号进行的校正，以克服上行损害。然后CMTS将均衡器值发送到电缆调制解调器以更新其预均衡器。**这将导致上行信噪比（SNR）的显著改善，这反过来又转化为用户更好的体验质量。主动网络维护（PNM）工具监控电缆调制解调器，并从所有调制解调器中收集预均衡器 ** 信息。来自每个调制解调器的预均衡器值揭示了关于每个调制解调器可能具有的 ** 损害类型的信息。在这个项目中，我们将扩展Clearcables Connects的PNM工具，以持续监控 **DOCSIS网络，生成早期预警指标，识别电缆线路或设备的变化，并预测故障。