迎接无线新时代

因为MSN Space的原因,很多东西都不见了,sigh。
懒得再写了,简单点过吧。
 
 
这家和美国军方有密切联系的公司在无线技术上有了重大突破。
 

Sleeper wireless technology may wake up later this year

By: E. Schwartz

By next year people may be saying x marks the spot or at least xMax does, to hear the inventor, Joe Bobie tell it. It is a broadband, wireless broadcast technology that could make even Wi-Max look anemic in terms of coverage.

I suggest you go to the XG Technology site for a full explanation, but suffice it to say xMax is closer to television broadcast technology than it is to WiFi and WiMax.

Think about it this way, says Bobier, you can have a single television antenna in Miami and its coverage area will include Ft. Lauderdale. You can do the same with xMax. It uses very sensitive receiver that can pick up extremely weak transmissions. An xMax receiver separates out its signal from all competitng systems, including noise.

"Instead of relying on power we rely on finesse," says Bobier.

This in essence is the secret behind its ability to broadcast a signal from a single point that could cover an entire city.

And as an additional benefit the low power means improved battery life. Bobier compared it to having you cell phone on standby instead of talk when the system is in use.

If you wanted the same coverage with Wi-Fi or WiMax the cost would be exponentially higher to put up and manage hundreds or thousands of access points. Here you need a base station on a tower and receivers in each moble device.

The receivers, let”s say two chips in your notebook PC, can hear that signal and receive data at rates similar to WiMax and WiFi.

Bobier tells me if you had two towers, one facing north and one south, the performance would be about 88Mb per second.

In September trials will begin in Miami and Ft. Lauderdale and XG Technology is already in talks with Intel, other processor companies and carriers.

This thing might happen sooner than you think.

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