A polynomial analog baseband predistorter for compensation of wireless amplifier’s distortion
| Autor: | Zabih Ghassemlooy, Elnaz Alizadeh Jarchlo, Sepideh Mohammadi Kouhini, Luis Nero Alves, Sasan Khademi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Polynomial
Polynomial model Computer science G500 H600 Amplifier G400 05 social sciences Linearization 050801 communication & media studies 020206 networking & telecommunications 02 engineering and technology 0508 media and communications Polynomial and rational function modeling CMOS Distortion 0202 electrical engineering electronic engineering information engineering Electronic engineering Baseband Hardware_INTEGRATEDCIRCUITS Power amplifier Analog pre-distortion Intermodulation |
| Zdroj: | 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) CSNDSP |
| Popis: | This paper presents a new analog polynomial pre-distortion circuit using 350nm CMOS technology to reduce the distortion of the power amplifier in wireless communication systems. The proposed pre-distortion circuit uses the polynomial approach. The coefficients of the polynomial are controlled by multiplying them with sufficient digit defined through the indirect learning process to provide best practice linearization. Circuit level simulation of the proposed circuit is using Cadence DFW II is used as proof of concept. The simulation set-up comprises a power amplifier, excited with a four carrier GSM signal, pre-distorted by the proposed circuit. Simulation results show that using the pre-distortion circuit the 3rd order intermodulation distortion is reduced on average by 12 and 16 dB. published |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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