Question
If signal-to-interference ratio is 5 dB, signal power is
8 dB, then what is the interference power in dB?Solution
Signal-to-Interference Ratio (SIR in dB) = Signal power (dB) – Interference power (dB) Given, SIR = 5 dB Signal power = 8 dB So, Interference power = Signal power – SIR = 8 – 5 = 3 dB
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