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Wireless spread spectrum communication

Wireless spread spectrum communication is employed in cellular networks and Wi-Fi. It provides stability by reducing wireless interference and increased bandwidth by taking advantage of additional wireless spectrum in order to share bandwidth of other channels. Also it provides increased security and keeps out intruders.
 
The whole concept of wireless spread spectrum is to divide a message into parts of related transmissions and to transmit them over a broad range of frequencies, when they all reach the intended destination they will be rearranged.

There are many ways to use to the spread spectrum, Wi-Fi protocols use frequency hopping and direct sequence spread spectrum.

The initial reason for developing the spread spectrum was to preserve the integrity of radio messages particularly those of the military. It goes back to the 80’s before Wi-Fi and cellular networks were even popular. In fact research on this has been conducted by old famous scientists such as Nikola Tesla and Hedy Lamarr.


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