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Hi,
Does anybody know why we use 11MHz chip rate while the channel bandwidth is 22MHz in 802.11b.
It seems like a waste of bandwidth. Is is because of the pulse shape??
Thanks
The material was helpful.
But I am still confused if coherent detection/demodulation is done at the receiver in 802.11b. Since 802.11b uses Differential QPSK and BPSK which does not require coherent detection (Maybe I am wrong about this). A lot of texts say that 802.11b uses coherent...
Hi
I am trying to figure out if channel estimation and coherent demodulation is used in 802.11b receiver. I understand that 802.11b uses CCK coding with DBPSK or DQPSK for 5.5 and 11Mbps rates. But I am not able to figure out if Channel estimation and coherent demodulation is done at the...
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