论文信息 - A descriptive study on AM-AM and AM-PM conversion phenomena through EVM-SNR relation

A descriptive study on AM-AM and AM-PM conversion phenomena through EVM-SNR relation

The novelty of this study is the extension of the relationship among error vector magnitude (EVM), bit-error-rate (BER) and signal-to-noise ratio (SNR) for an AWGN channel to the communication systems subject to nonlinearity in such channels. Particularly, this introductory work attempts to make a connection between the nonlinearity characteristics (i.e., both joint and individual AM-AM and AM-PM conversion) of a high power amplifier (HPA) chain and the simulated EVM-SNR characteristics of specific digital communication signals (i.e., QPSK, 8-PSK and 16-QAM) on this chain. By modeling the AM-AM and AM-PM conversion processes for the GaAs-FET based three-stage solid-state HPA chain utilized in this study by the Modified Rapp Model, comparative EVM-SNR simulations for various modulation schemes under nonlinearity are realized and the corresponding EVM-SNR plots are presented.

C. Dudak | N. D. Kahyaoglu

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