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Table 1 Primary user link budget (QPSK coded FEC R = 1/2)

From: On the feasibility of a secondary service transmission over an existent satellite infrastructure: design and analysis

Frequency (MHz)

2200

Throughput rate (Mbps)

3.4

Transmitted power (mW)

1000

Satellite carrier EIRP (dBm)

38.3

Free space loss (dB)

−162.2

Depointing loss (dB)

−10

E. S. antenna max gain - 5m, eff 50% (dBi)

38.2

System Noise temperature (K)

130

C/N0 (dB–Hz)

81.8

Eb/N0 (dB)

16.5

Demodulation losses (dB)

− 6

Eb/N0 required (dB) – for BER = 1E-5

7

Margin (dB)

3.5