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2 wireless networks use the same channel

Last Updated: September 20, 2011

What happens if 2 wireless networks use the same channel but different PN codes for each network?


Devices with different PN codes but on the same frequency cannot communicate with one another, but might present some interference to one another. Because their RF energy is in the same frequency band, information transmitted within one network may be ‘heard’ by devices in another network, even though those devices cannot ‘understand’ the information because of the different PN code. The data may be perceived as interference, which could impact the reception of data if the two networks happen to have transmissions within the exact same time interval. A robust protocol must handle this situation with no observable impact by the end user.

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