From: SER/BER expression for M-QAM OFDM systems with imperfect channel estimation and I/Q imbalance
μ 0
μ 1
μ 2
No IQ-compensation
1 + K F 1 ( | G 1 | 2 + | G 2 | 2 + N p σ h 2 + 2 ℜ { G 1 G 2 } ) E s F 1 + ( 1 + K ) G 1 G 2 2 − 1 E s
F 2 1 + μ 0 E s E s F 1
1 + K 1 + μ 0 E s γ F 1 σ h 2
IQ comp: channel estimation
N p ( 1 + K ) 2 F 1 σ h 2 E s
F 2 1 + μ 0 E s F 1 E s
IQ comp: chan. est. & equalization
μ 0 ( 1 + μ 0 E s ) 1 + μ 0 E s F 1 F 2