Video switching--more than a bandwidth saver

June 2006
CED;Jun2006, Vol. 32 Issue 6, p14
Trade Publication
The article discusses the potential of switched broadcast. Apart from saving bandwidth and money, switching video makes available infinite number of channels, makes it possible to target advertising to specific households and also enables faster channel changing. High-definition content should be broadcast by operators. Telecom companies or telcos are launching switched services. Operators can migrate to switching to answer competitive challenges from Telcos. Two types of switched broadcasting are multicasting and unicasting. Every subscriber can get a dedicated program stream in unicasting even if multiple viewers are watching. In multicasting, multiple viewers share an MPEG stream while viewing the same content at the same time.


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