TDMA, FDMA, and CDMA
TDMA, FDMA, and CDMA
TDMA, FDMA, and CDMA
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s<br />
() j () <br />
() j<br />
t = a (<br />
)<br />
k t kT<br />
Digital signal of user j<br />
Sequence of equally spaced<br />
binary antipodal symbols<br />
a k (j) : k-th binary antipodal<br />
symbol generated by user j<br />
k<br />
T : time period between symbols<br />
<strong>TDMA</strong>: a case study<br />
User<br />
j<br />
s (j) (t)<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
-0.2<br />
-0.4<br />
-0.6<br />
-0.8<br />
-1<br />
0 1 2 3 4 5 6 7 8 9 10<br />
x 10 -3<br />
8
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