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Equalizer in 5G

The demand for high-speed data connection services develops in tandem with the number of internet users and multimedia apps. To deliver these services, a robust, reliable, and high-performance modem with an efficient structure is necessary. The channel’s inter-symbol interference (ISI) causes severe performance degradation in high-rate transmission. The ISI can be significantly decreased if the receiver has channel equalization. Many equalizers have been employed to increase the data rate and lower the ISI through channel compensation in the face of inter-symbol interference caused by multipath channels. While linear equalizers, when using the FIR filter structure, have a significant tapped-delay-line (TDL), the nonlinear equalizer class has proven to be quite helpful.