Figure 4
From: SER/BER expression for M-QAM OFDM systems with imperfect channel estimation and I/Q imbalance
SER performance for the three estimation and equalization schemes. (a) Separate channel estimation with separate equalization. (b) Joint channel estimation with separate equalization. (c) Joint channel estimation with joint equalization. Simulation and theoretical results for 16-QAM with gain g = 0.9 and phase ϕ = 2ofor both transmitter and receiver.