By Chris Bastian — Where would we be without Wi-Fi, and specifically the IEEE 802.11 group of wireless standards? We have grown accustomed to our laptops and smart phones smoothly interoperating with thousands of Wi-Fi access points as we transit from place to place, supporting our video streaming, web browsing, and gaming needs.
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By Charles Cheevers — What changes will dominate the home wireless services market in the next five years? Several fundamental trends are emerging that will guide device and solution requirements for next-generation homes.
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By Brady S. Volpe — Proactive network maintenance (PNM) has been steadily growing in acceptance and popularity over the past several years with adoption amongst cable operators from Tier 1 such as Comcast all the way to the smallest Tier 4 operators.
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By Jason Rupe — CableLabs went into high gear with proactive network maintenance (PNM) not long ago and has big plans for the future of PNM. Success will rely on the cable community’s strong focus on furthering PNM in several directions.
Read MoreBy Ron Hranac — Linear distortions—micro-reflections, amplitude ripple/tilt, and group delay distortion—wreak havoc upon the digital signals carried in our cable networks.
Read MoreBy Alberto Campos — Cable has enjoyed advances in HFC network troubleshooting leveraging proactive network maintenance tools. PNM uses the intelligence of transport devices like the cable modem (CM) and the cable modem termination system (CMTS) for network maintenance purposes.
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By Chris Bastian — Network architectures and operations have become more complex in the past few decades. When I began working in telecommunications in the mid-1980s, telecom networks were still using circuit switches such as the 5ESS and DMS-100.
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By Larry Wolcott — I was recently sorting through some old notebooks and stumbled across a few pages that were dated 2009. The drawings and formulas were the early conception of our PNM (proactive network maintenance) signature matching algorithm.
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By Ed Marchetti — I was surprised when reminded that PNM has been “a thing” for almost 10 years. It seems almost like yesterday when we were seeing this for the first time and wondering about the future of cable maintenance.
Read MoreBy Jeff Finkelstein — For anyone who has been in cable a long time, for some of us a very long time, we remember how challenging it was to troubleshoot plant impairments in the headend and field. Not just in finding and correcting, but in dealing with the equipment we used in the day.
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