Ok, maybe I should highlight 'why' some people think that ADSL2+ will not as robust of a method for last-mile technologies for transmitting video content. I am sure Mr. Drawbaugh might learn something from this. Here we go.
1. ADSL2+ is stated to offer between 12-15 Mbps per twisted pair of telephone lines, which of course is dependent upon your distance between the DSL mux (DSLAM) and the STB. If the plan were to use a single pair of twisted cables (a la phone service) then transmitting 8-9 Mbps of MPEG-4 HD content would not afford much more bandwidth for, say, a second HD channel to be received simultaneously.
2. Every telephone company (ahem, ILEC) in the USA consider deploying IPTV over twisted pair is approaching it using either ADSL2+ via bonded pair (set of two pair) to provide 20-25 Mbps bandwidth, VDSL to provide 35-60 Mbps, or VDSL2 for up to 100 Mbps.
3. IPTV can stream video using a variety of video codecs including the conventional MPEG-2, the more aggressive MPEG-4, and even VC1 and WMVHD. Current off the air broadcast 1080i is about 19.2Mbps using MPEG-2, and can be delivered with 8-9 using MPEG-4 or VC1.
4. Because of a need to deliver voice, Internet, and multiple streams of video are planned for, the projects will be to afford multiple SD and HD STBs simultaneously. The only telephone company consider ADSL2+ is BellSouth, and considering that they are merging with AT&T (ahem, SBC), and that AT&T plans on using VDSL initially and VDSL2 later, I would think the minimum bandwidth is sufficient for their target customer.
5. Unlike traditional broadband via the telephone companies, the common loop-lengths (distance between your home and the telco equipment) will no longer be 18,000-21,000 feet, but around 5,000 or less. This need is a result to insure a lot more bandwidth than what is currently available via Internet-only services.
6. In order to reduce the loop lengths the telephone companies must move their equipment closer to the customer. The modern method for doing this is to use fiber from the DSL mux to their core network and do so via Gigabit Ethernet.
7. Unlike traditional CATV and satellite transmission, the telephone company is using the approach of IPTV to selective send to your home only the channels you are watching or recording off of. CATV and DBS (satellite) sends to you every freaking channel (waste of bandwidth for CATV). This is why CATV are starting to warm up to using IPTV and reducing the local loop bandwidth consumption.
I could go on, but remember that website I suggested?
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Ok, maybe I should highlight 'why' some people think that ADSL2+ will not as robust of a method for last-mile technologies for transmitting video content. I am sure Mr. Drawbaugh might learn something from this. Here we go.
1. ADSL2+ is stated to offer between 12-15 Mbps per twisted pair of telephone lines, which of course is dependent upon your distance between the DSL mux (DSLAM) and the STB. If the plan were to use a single pair of twisted cables (a la phone service) then transmitting 8-9 Mbps of MPEG-4 HD content would not afford much more bandwidth for, say, a second HD channel to be received simultaneously.
2. Every telephone company (ahem, ILEC) in the USA consider deploying IPTV over twisted pair is approaching it using either ADSL2+ via bonded pair (set of two pair) to provide 20-25 Mbps bandwidth, VDSL to provide 35-60 Mbps, or VDSL2 for up to 100 Mbps.
3. IPTV can stream video using a variety of video codecs including the conventional MPEG-2, the more aggressive MPEG-4, and even VC1 and WMVHD. Current off the air broadcast 1080i is about 19.2Mbps using MPEG-2, and can be delivered with 8-9 using MPEG-4 or VC1.
4. Because of a need to deliver voice, Internet, and multiple streams of video are planned for, the projects will be to afford multiple SD and HD STBs simultaneously. The only telephone company consider ADSL2+ is BellSouth, and considering that they are merging with AT&T (ahem, SBC), and that AT&T plans on using VDSL initially and VDSL2 later, I would think the minimum bandwidth is sufficient for their target customer.
5. Unlike traditional broadband via the telephone companies, the common loop-lengths (distance between your home and the telco equipment) will no longer be 18,000-21,000 feet, but around 5,000 or less. This need is a result to insure a lot more bandwidth than what is currently available via Internet-only services.
6. In order to reduce the loop lengths the telephone companies must move their equipment closer to the customer. The modern method for doing this is to use fiber from the DSL mux to their core network and do so via Gigabit Ethernet.
7. Unlike traditional CATV and satellite transmission, the telephone company is using the approach of IPTV to selective send to your home only the channels you are watching or recording off of. CATV and DBS (satellite) sends to you every freaking channel (waste of bandwidth for CATV). This is why CATV are starting to warm up to using IPTV and reducing the local loop bandwidth consumption.
I could go on, but remember that website I suggested?