For many, the acronym conjures up visions of 100s of on-demand entertainment channels delivered anytime, anywhere. It promises total control by the user to customize their multimedia experience for true interactive unicasting. And for many operators, IPTV holds the allure of tapping into new revenue sources with the delivery of advanced multimedia services over broadband networks. IPTV is being enabled by the transition from analog to digital video. Advances in video compression technologies are making it easier to deliver both standard- and high-definition audio and video. The growth in bandwidth, coupled with digital video and better compression, is enabling broadband delivery | IPTV Guide Practical Deployment Strategies for Network Operators IPTV. For many the acronym conjures up visions of 100s of on-demand entertainment channels delivered anytime anywhere. It promises total control by the user to customize their multimedia experience for true interactive unicasting. And for many operators IPTV holds the allure of tapping into new revenue sources with the delivery of advanced multimedia services over broadband networks. IPTV is being enabled by the transition from analog to digital video. Advances in video compression technologies are making it easier to deliver both standard- and highdefinition audio and video. The growth in bandwidth coupled with digital video and better compression is enabling broadband delivery. And increased competition along with consumer demand is fuelling the fire. So what s the best way to deploy IPTV The answer is there s no one answer. Today the basic delivery networks include Digital Subscriber Lines DSL Passive Optical Networks PON cable or a combination of these. Each has its advantages and challenges. IPTV GUIDE Typical XDSL Development With current compression technologies neither DSL nor asymmetrical DSL provide the bandwidth required for IPTV. Very high-speed DSL offers more bandwidth up to 50 Mbps downstream but the tradeoff is the distance. Subscribers need to be close to the CO or a remote terminal as the speed of the network decreases over longer distances. For many operators IPTV deployment over xDSL will remain attractive given current investments in the copper plant. One of the downsides is xDSL delivery of high-definition TV. HDTV currently requires Mbps per channel compared to Mbps for standard-definition TV. Channel changing requires a set-top box that sends a signal to a DSLAM which may create some latency issues for HD programming even at top VDSL speeds. Telephone MDU MTU Voice Gateway Intranet Internet Telephone Layer 2 3 Switch IP Services for PON BPON GPON Local Broadcast TV .
