802.11n Chip
Quantenna launched a chip that supports the latest wi-fi standard, 802.11n. According to the wikipedia article, the 802.11n standard is set to be finalized in Nov 2009, and can support up to 600Mbps. Currently popular wi-fi chips can support 54Mbps. Even that is somewhat patchy due to the presense of physical obstacles likek walls.
The technologies that enable the significant gain from previous wi-fi solutions are
- 4×4 MIMO: 4 transmit and 4 receive antennas.
- Beamforming: This enables directional transmission so that the transmitter can zero in on the receiver. This technique is also used for noise reduction on cell phones, so that you can filter out background noise and focus on the person talking on the cell phone. For example: Forte Media
- Concurrent dual band support: 5Ghz for video and 2.4 Ghz for data.
The chips will apparently cell for $20 and $40 for the dual mode version.
At these datarates streaming HD video is easily possible. TV manufacturers like Samsung and Phillips have already put wi-fi cihps into their TVs that can support standard definition signals.
Some more infomation at GigaOM
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