Tuesday, April 13, 2010

High Speed Wireless


There is an article reviewed three different high speed wireless standards,
WiGig works at 60-gigaherz wireless spectrum, creates a 10-meter range with transmit speed up to 7 gigabits per second, which is almost 11 times of 802.11n speed (600 megabits per second). WHDI puts more weight on multimedia content delivery, especially for high definition video, it uses 5 gigaherz spectrum with throughput up to 3 gigabits per second, with a range of 100 meters. SiBEAM also uses 60-gigaherz spectrum and provides multi gigabits/second capability, makes it a strong candidator for replacing existing cables in your home.

Back to video, all above standards requires video be digitized before being transmitted over the wireless link. Well, there is another standard called HDcctv, which aims to transmit high definition (720p, 1080p) video over coaxial cable without digitization and packetization, the throughput is up to 3Gbps. Unfortunately, HDcctv also has two competitors, PSIA and ONVIF.
Let's see who will become dominant standards for streaming high definition digital video and analog video!

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