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QoS is key to HD video in home networks

Posted: 01 Nov 2007 ?? ?Print Version ?Bookmark and Share

Keywords:whole-home networking? QoS? HD video? MAC?

Consumers expect their TV viewing to be nearly as reliable as their electricity. Turn on the TV, and the program runs without interruption. As we move into the era of networked home entertainment, consumers will expect nothing less. Room-to-room streaming of high-definition (HD) content is one of the most desired capabilities for today?s digital home. For cable and content providers, the flawless delivery of entertainment services is their livelihood, and they must ensure that their customers receive reliable services. Failure results in customer service calls and the potential loss of customers to competitors.

In recent years, the industry has pursued whole-home entertainment networks using existing networking technologies. Existing networking technologies have been great for bulk file transfers, Internet access, e-mail or networking printers However, these have proven largely ineffective when it comes to reliably distributing A/V digital content with the QoS that whole-home entertainment networks require.

Streaming content such as HD entertainment throughout the home imposes requirements that these legacy networking technologies were not designed to support. Among these requirements are substantial bandwidth, guaranteed QoS, low latency (minimal delays) and low jitter (differences in the latency from packet to packet).

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