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http://dx.doi.org/10.7840/kics.2012.37A.10.827

Design and Performance Evaluation of Receiver Feedback Closed Loop Pre-Distortion System  

Bok, Junyeong (충북대학교 전자공학과)
Jo, Byung Gak (국방과학연구소)
Baek, Gwang Hoon (국방과학연구소)
Ryu, Heung-Gyoon (충북대학교 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37A, no.10, 2012 , pp. 827-833 More about this Journal
Abstract
The receiver performance is degraded by nonlinear memory problem in communication system. The pre-distorter techniques are an effective technique to compensate for the nonlinear distortion of the HPA without memory effects. However, memory effect of HPA can no longer be ignored when data signal is transmitted in high speed. Many adaptive pre-distorter schemes have been studied to compensate for memory effect problem of HPA in transmitter. The complexity and cost of satellite will increase when using adaptive pre-distorter in satellite communication system. In this paper, we propose receiver feedback closed loop pre-distortion technique in order to compensate for nonlinear problem of HPA with memory problem. The purpose of this paper is to reduce complexity and cost of satellite design by using only pre-distorter at terrestrial station.
Keywords
Predistortion; memory effect; receiver feedback; memory polynomial; HPA;
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