New HomeGrid Forum White Paper describes unique G.hn interference mitigation techniques for high-density network environments

G.hn’s PLC mode claims to be the only PLC home networking technology able to tackle the issues of interference caused by nearby PLC networks.
The White Paper, entitled: “PLC Neighboring Networks – How G.hn solves PLC’s Neighboring Networks Problem,” – explains the problems of both low and high level interference in neighboring networks, particularly in MDU environments where many PLC networks are installed nearby. It goes into the root causes of the problem, why legacy technology mitigation techniques are only partially effective at best, and how the complete G.hn Neighboring Domain Interference Mitigation (NDIM) set of techniques has at last truly solved the problem.

PLC inter-network interference has been a persistent problem and no networking technology prior to G.hn has been able to provide an effective solution. This interference results in significant service degradation, causing such problems as screen freezing or failure in IPTV and video services, VoIP call interruptions, loss of data or even a complete loss of network connection. With HomeGrid Forum members leading the effort, the ITU-T defined a complete G.hn NN toolkit that resolves this set of problems automatically; this is known as Neighboring Domain Interference Mitigation (NDIM). The NDIM technology is explained clearly in the white paper, enabling Service Provider planners and evaluators to see that NN problems have now been resolved, so they can deploy G.hn confident that the end user experience will be world class.

NDIM mitigation automatically eliminates G.hn inter-network interference. As John Egan says: “G.hn with NDIM continues the philosophy of G.hn… it is designed to solve problems and not require intervention to do so. In other words, G.hn ‘just works.’ G.hn is easy to install and ensures a high quality of service, with NDIM diagnosing the likely causes of interference and dealing with them automatically. This is great news for both Service Providers and consumers. It means that consumers are able to self-install their PLC home network and know that it will work first time, delivering the quality of service they need for their multi-play services. This is further proof that G.hn has a solid foundation that can be extended to meet new market needs and the evolution of technology – a truly next generation standard for wired home networks of any type.”

The Neighboring Networks document is one of a series of white papers published by the HomeGrid Forum designed to explain and promote the advances in G.hn. The recently released MIMO white paper covered the standardization of MIMO for PLC, which is now part of G.hn, and how MIMO can benefit the market and solve problems for Service Providers. More white papers are planned.

The HomeGrid Forum’s PLC Neighboring Networks white paper can be found at the site.