2.4 IPTV OVER NEXT GENERATION CABLE TV NETWORKSCable TVoperators have made significant investments in the recent past to upgradetheir networks to support advanced communication services such as IPTV. Tounderstand the delivery of IPTV content over a cable TV network and to put thetechnology in context, it is first necessary at least on a high level, to review thebasic principles of hybrid fiber networks and traditional digital TV transmissiontechnologies.2.4.1 Overview of HFC Technologies
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