Figure 5

Simulated (dots) and approximated (curve) conditional LLR distributions for FBMC in 16 QAM case. Distributions for the first and second bits of a symbol on the left are Gaussian with a mean of 1.26 and a variance of 2.46. Distributions for the third and the fourth bits of a symbol on the right are approximated with mixture of two Gaussians: 0.59 G (1.45,2.62) + 0.41 G (6.04,7.24), where G(μ,σ²) is Gaussian distribution with mean μ and variance σ². Transmitted bits are equal to 1, SNR = 5 dB, Gaussian channel.