Question: Given a relay-user link as described in Section A.3 with the following parameters: Average transmit power of relay satellite:35dBW Transmit frequency:7.7GHz Effective antenna aperture of

Given a relay-user link as described in Section A.3 with the following parameters:
Average transmit power of relay satellite: 35 dBW
Transmit frequency: 7.7 GHz
Effective antenna aperture of relay satellite: 1 m²Noise temperature of user receiver (including antenna):
1000^◦K
Antenna gain of user: 6 dB
Total system losses: 5 dB
System bandwidth: 1 MHz
Relay-user separation: 41,000 km
(a) Find the received signal power level at the user in dBW.
(b) Find the receiver noise level in dBW.
(c) Compute the signal-to-noise ratio at the receiver in decibels.
(d) Find the average probability of error for the following digital signaling methods:⁴ (1) BPSK, (2) binary DPSK, (3) binary non-coherent FSK, and (4) QPSK.

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