The new generation mobile communication systems are very sensitive to the nonlinearities in their transmitting paths. The power amplifier is a key component which generates the nonlinear distortions. Power amplifier linearization techniques are very important to reduce the distortion of the transmitted signal and the adjacent band interference of users. As its facility of implementation, adaptive ability and high efficiency, the pre-distortion technology becomes the first choice to minimize the nonlinear distortions. In this paper, a new technique, based on the pre-distortion principle for linearizing a power amplifier, which is modeled by a Wiener model is proposed. The Wiener model is used to take into account the nonlinearities and the memory effects of the power amplifier. We also propose an efficient and original method for extracting the parameters of the power amplifier’s Wiener Model. Simulation results have been provided for showing the performances of this technique.
목차
ABSTRACT 1. Introduction 2. Characteristics of Power Amplifier 2.1. Static nonlinear effect of power amplifier 2.2. Nonlinear memory effect of power amplifier 2.3. AM/AM and AM/PM characteristics 3. Proposed Pre-distortion Linearization Technique 3.1 Predistortion Theory Analysis 3.2 Modeling the Behavior of the Power Amplifier 3.3 The Structure of Proposed Pre-distortion Linearization System 4. Simulation and Result References
키워드
Pre-distortion; Power amplifier; Linearization; Wiener model; Nonlinearities and Memory Effects
저자
Biyi Lin [ REENA, Ecole Polytechnique de l’Université de Nantes, Information Technology, Guangdong Univ. ]
Yide Wang [ REENA, Ecole Polytechnique de l’Université de Nantes ]
Bruno Feuvrie [ REENA, Ecole Polytechnique de l’Université de Nantes ]
Qingyun Dai [ Information Technology, Guangdong Univ. ]
보안공학연구지원센터(IJAST) [Science & Engineering Research Support Center, Republic of Korea(IJAST)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Advanced Science and Technology
간기
월간
pISSN
2005-4238
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Advanced Science and Technology vol.22