"White space wireless network" in the end ?

White space wireless network (that is, before the industry known as "super Wi - Fi") use of the radio and television networks fifty - 700 MHZ "blank frequency band", for county residents brought super fast wireless connection speed, transmission distance is much faster than traditional Wi - Fi hot (because countries including the United States to the FCC Wi - Fi hot spot of the transmitted power has the strict limit).

Along with the TV signal from analog to digital migration, "blank range" for radio and television networks have lost meaning, but Google and other IT giant push super Wi - Fi ideal transmission frequency band.

But not long ago Wi - Fi union accused the statement "super Wi - Fi" that is easy to misunderstand, you don't say, the problem is quite serious, because "white space" and "Wi - Fi" does not matter.

Wi - Fi (actually, we say is WLAN, Wi - Fi just WLAN products in Wi - Fi league there through a popular interoperability the authentication test), it is a bit of a mess, well, WLAN is actually a kind of wireless local area network protocol, and "white space" is refers to the deployment of the application of low power wireless radio frequency band, this is just like NiTou car and bicycle lanes difference, not a technical level.

With white space frequency corresponding to the WLAN should be used by 2.4 GHz frequency band (industrial, medical, scientific global reserve unauthorized frequency band ISM), 2.4 GHz is also can be water can absorb radio frequency, so our microwave oven in the frequency band, so the microwave oven to Wi - Fi router signal generated interference.

And our daily Wi - Fi product use 2.4 GHz frequency band, compared to white space frequency band frequency to low many, only 700 MHZ, will not be water absorption, so in the same power the propagation distance than Wi - Fi network (without sunscreen covered at a football field just) much. In addition, white space wireless network speed than the Wi - Fi, 3 g or 4 g mobile broadband technology to fast many, 802.11 n wireless network to 160 to 300 MB per second the speed of data transmission, but also can't with white space wireless equipment at 400 to 800 MB compared to speed.