Binary Phase Shift Keying (BPSK) is a method for representing bits
with an analog signal, in our case turning the digital electrical
signals in our PCs and APs into wireless radio waves.
BPSK is highly clear of multipath propagation, but is unused in high
data rate applications because of bandwidth inefficiency.
In terms of 802.11b [1], BPSK is only used when 1Mbps data rates are
in use, above this threshold, QPSK [2] is generally used.
* BPSK Basics [3]
* Maths behind BPSK [4]
* 802.11B Basics [5]
See also PHY [6], QPSK [7]
Links:
------
[1] http://melbournewireless.org.au/?802.11b
[2] http://melbournewireless.org.au/?QPSK
[3] http://www.computerpro.com/~lyle/watsbpsk.htm
[4] http://cnx.rice.edu/content/m10280/latest/
[5] http://www.pulsewan.com/data101/802_11_b_basics.htm
[6] http://melbournewireless.org.au/?PHY
[7] http://melbournewireless.org.au/?QPSK
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