interesting article, but the guy mixes up the terms "cognitive radio" and "spread spectrum."
Quote:
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There's another solution: abandoning the current method of spectrum allocation in favor of a technology called "spread spectrum."
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uhh... WiFi already uses SS...
802.11 used FHSS (freq hopping)...now relegated to the lower speeds of 802.11b
the higher speeds use DSSS (direct sequence).