After having presented the measurement method, both the aliasing and the quantization error are theoretically dissected.
On the contrary, the shape of CE error's PDF for the FDM pilot is more spread, since the pilot subcarriers are affected by nonlinear noise due to both the HPA and the quantization.
Our results show that pilot-assisted CE using FDM pilot is more sensitive to nonlinear distortions than the CE using a TDM pilot, since its pilot subcarriers are affected by nonlinear noise due to both the HPA and the quantization.
The results show that the BER performance with pilot-assisted CE based on an FDM pilot is more sensitive to the nonlinear distortion then a TDM pilot, since its pilot subcarriers are affected by nonlinear noise due to both the HPA and the quantization.
Herein, frequency agile design of the STF and the NTF of an I/Q mismatched multistage QΣΔM is discussed taking both the input signal and the quantization noise-oriented MFI into account during multi-band reception.
In QΣΔMs generally, the mismatches generate conjugate response for both the input signal and the quantization error [18, 19, 25], which is a clear difference to mirror-frequency problematics in more traditional receivers.
And the quantization of outlier extraction was set with the default parameters.
However, SPOM-NOM suppresses noises such as the laser 1/f noise, the thermal noise, and the quantization noise.
The results show that the pilot-assisted CE with the FDM pilot is affected by the nonlinear noise due to both the quantization and the HPA, while the pilot-assisted CE with the TDM pilot is only affected by nonlinear degradation due to quantization because of the pilot-sequence with low PAPR.
We study two common types of quantization, the uniform quantization and the logarithmic quantization.
