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Summary:

Given that the wireless networking technology Ultrawideband (UWB) is on its deathbed and WirelessHD and WHDI are yet to gain any real momentum, it seems that the winner of wireless HD video sweepstakes is going to be 802.11n which can stream data at 100 Mbps. In […]

FINAL FINAL WiFi next logoGiven that the wireless networking technology Ultrawideband (UWB) is on its deathbed and WirelessHD and WHDI are yet to gain any real momentum, it seems that the winner of wireless HD video sweepstakes is going to be 802.11n which can stream data at 100 Mbps. In a recent survey, Scottsdale, Ariz.,-based research group In-Stat comes to these conclusions:

  • UWB will not be a major factor in the consumer electronics market. Many chip companies are leaving the market in late 2008 and 2009.
  • Nearly 24 million digital TVs will ship with some type of Wireless HD video technology in 2013.
  • WHDI and WirelessHD are being promoted by startups, but they are new, expensive and power-hungry, which is generally not a recipe for quick market success.
  • WHDI and WirelessHD will see a slow start, with fewer than 8 million devices with those technologies shipped in 2013.

Given the ubiquitous nature of WiFi and the price advantages that come with it, we wouldn’t be surprised. Despite Stacey’s best efforts, I have often struggled to keep up with the growing number of Wireless HD standards. This confusion is to the advantage of WiFi, which is now part of the popular lexicon. The only downside is that you need to encode and decode the video on both ends of the stream, a distinct disadvantage to WHDI and WirelessHD.

One thing against 802.11n — despite the throughputs, the quality of the signal is almost always a game of chance. I constantly grapple with that in my apartment and have to switch to hardwired ethernet to transfer big files or watch video off my Buffalo Linkstation Mini.

  1. Hi Om,

    Although 802.11n is going to be a revolutionary technology for applications where mobility is required (laptops, hand-held devices, etc), there is a consensus among IPTV Telco service providers that wired technologies are a better choice for HD video delivery, specially to/from stationary devices like TVs, DVRs, Blu-Ray players, etc.

    The most important technology targeting wired video networking is the G.hn standard from ITU: G.hn is a next-generation standard, capable of operating over any home wiring (power lines, phone lines and coaxial cable) and with the possibility of achieving line data rates as high as 1 Gbit/s [http://blog.ds2.es/ds2blog/2009/04/how-fast.html]

    G.hn is promoted by the HomeGrid Forum [http://www.homegridforum.org] and is supported by a large number of silicon vendors, Telecom Service Providers and CE vendors.

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  2. Carolyn Barnett Wednesday, April 29, 2009

    Very good information.I am subscribing.

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  3. Chano,

    I agree the G.hn standard is very interesting but for me the BPL (broadband over powerline) will be best routed via visible light communication using LED’s. This (to me) is more ‘the next generation’. Bandwidth is in the Gbits/s area.

    Although we are early in this development, the technology will be available within a few years (not decades). I think that moving to a spectrum that does not create potential harmful electromagnetic radiation is the way we will move. The visible spectrum operates in wavelengths that have no effects to people (since they are light) whilst the arguments against cellphones, Wi-Fi and cellphone mast radiation is building to a point that medical effects are being looked into and people becoming extremely concerned.

    In terms of a home based network system, LED based connectivity will be able to offer massive bandwidth as well as light, decreasing electricity charges (as the LED’s are more efficient) and will help promote a ‘green’ eco friendly alternative.

    If anybody wants more information on this subject I will give my details to Om.

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  4. David Callisch Monday, May 4, 2009

    One thing against 802.11n — despite the throughputs, the quality of the signal is almost always a game of chance. I constantly grapple with that in my apartment and have to switch to hardwired ethernet to transfer big files or watch video off my Buffalo Linkstation Mini.

    Hey Om – We can take your pain away…let us get you one of our 802.11n boxes and you should see these problems disappear.

    Hope this finds you well.

    Best,

    David

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    1. I could not agree more. That indeed is the problem with WiFi and I suffer these up-and-down performance pretty much every day.

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