In this paper, we provide a survey on techniques to improve the spectrum and energy
efficiency of wireless communication systems. Recognizing the fact that power amplifier (PA) …

The next-generation (5G/6G) wireless communication aims to leapfrog the currently
occupied sub-6 GHz spectrum to the wideband millimeter-wave (MMW) spectrum. However …

In this paper, an augmented lookup-table-based Hammerstein predistorter is proposed for
the first time in order to further improve the pre-correction capability of the traditional …

In this paper, a robust modeling technique for memoryless wide-band radio frequency
transmitters using a dynamic exponential weighted moving average algorithm is developed …

With increasingly low-cost and power-efficient RF electronics demanded by today's wireless
communication systems, it is essential to keep up to speed with new developments. This …

Digital predistortion (DPD) is one of the most effective techniques to mitigate the distortions
caused by power amplifier (PA) nonlinearity and memory effects. As the input signal …

This article presents how the emission time constant of deep-level traps is responsible for
the achievable linearity (linearizability) degradation of gallium nitride high electron mobility …

The high peak to average power ratio (PAPR) levels associated with multicarrier systems
require the use of linear power amplifiers (PA) with large dynamic range. Unfortunately …

In this paper, a software-defined radio (SDR) based transceiver system is designed and
implemented on the system-on-chip (SoC) platform, which consists of a high-speed Arm …

In this paper, we describe a hybrid analog/digital linearization scheme for GaN high-electron-
mobility transistor (HEMT)-based power amplifiers that consists of a novel analog …