802.11n Wi-Fi coming to smartphones

The fast, high-capacity Wi-Fi that users have been enjoying for a few years in laptops is now due to hit smartphones and tablets in a big way, with two major Wi-Fi chip makers announcing products that use IEEE 802.11n with multiple antennas.

So-called MIMO (multiple-in, multiple-out) technology is one of the key capabilities of 802.11n, the most recent major wireless LAN standard. Access points and client devices based on 11n can exchange multiple streams of data over multiple antennas, making network capacity increase by double or more, depending on how many radios and antennas they have. But this capability so far has been limited mainly to PCs and some home electronics.

On Thursday, Atheros Communications and Marvell Technologies announced MIMO chips for mobile clients. These chips can be deployed in smartphones or other handheld devices to strongly boost the speeds that users enjoy, with little or no additional battery drain, according to the companies. Both companies will showcase these chips at the Mobile World Congress show in Barcelona next week.

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