콘텐츠 본문
논문 해외 국제전문학술지(SCI급) COMPENSATION FOR POWER AMPLIFIER NONLINEARITY IN THE PRESENCE OF LOCAL OSCILLATOR COUPLING EFFECTS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2012-05
- 저자명 JEONG, ER (JEONG, EUI-RIM)공동(참여),AHN, SH (AHN, SEUNG HYEOK),LEE, YH (LEE, YONG H.),CHOI, S (CHOI, SUNGHO)
- 학술지명 IEEE COMMUNICATIONS LETTERS
- 발행처명 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
We consider the design of a digital predistortion (DPD) scheme when there is a crosstalk between a local oscillator (LO) and a power amplifier (PA) called LO self-coupling. We first develop a baseband equivalent model for a direct conversion transmitter afflicted by LO self-coupling. Based on this model, a two-stage process, consisting of a feedback equalizer (FBEQ) and DPD, is proposed for the joint compensation of PA nonlinearity and LO self-coupling. The advantage of the proposed DPD over conventional DPD is demonstrated through computer simulation.
