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The Maximum Data Rate on Radio Channel

In order to implement reliable data transmission on radio channel, we must gurantee that link margin $ M \geq 0 $ . Here, we assume M = Pr,o - Pr,n = 0 . That is


Pt + Gt + Gr - L0 - S / N - W - F + 204 = 0 (5)

Therefore,


W = Pt + Gt + Gr - L0 - S / N - F + 204 (6)

Given the conditions:


d = 10   km (7)
Pt = $\displaystyle 1 ~ Watt \left ( 0 ~ dB \right )$ (8)
Gt = Gr = 0   dB (9)
S / N = 10   dB (10)
F = 2   dB (11)
fc = 900   MHz (12)



 
next up previous
Next: In the Case of Up: ELEC350 Communications Theory and Previous: Derivation the dB version
Yajun Kou
2000-09-19