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Relation between IBO and BER in the OFDM Communication System using Predistorter for the Nonlinear Compensation  

박주석 (충북대학교 전자공학과 및 컴퓨터정보통신연구소)
이강미 (충북대학교 전자공학과 및 컴퓨터정보통신연구)
유흥균 (충북대학교 전자공학과 및 컴퓨터정보통신연구소)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.7, 2004 , pp. 692-697 More about this Journal
Abstract
OFDM system is very useful for the multi-path channel and highly bandwidth-efficient system. However, OFDM signal shows the high PAPR so that nonlinear distortion can happen in the HPA(high power amplifier). This paper studies BER performance variation according to IBO(input back off) values when the predistorter is used fur the compensation for the HPA nonlinearity. In case of the SSPA(solid state power amplifier) of nonlinearity parameter p=0.5 and IBO=0㏈, the system with predistorter is poorer than the one without predistorter. But this situation is inverted, if IBO is increased from 0㏈ to 3㏈. So, we can find that there is a threshold value of IBO for the predistorter to effectively compensate for the nonlinear SSPA when the sub-carrier number and p value are changed.
Keywords
OFDM; PAPR; Threshold IBO; HPA Nonlinearity; Predistorter;
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  • Reference
1 OFDM with reduced peak-to-average power ratio by optimum combination of partial transmit sequences /
[ S. H. Muller;J. B. Huber ] / IEE Electronic Letters   DOI   ScienceOn
2 Blcok coding scheme based on complementary sequences for multicarrier signals /
[ H. Ochiai;H. Imai ] / IEICE Trans. of Fundamentals
3 A new combined method of the block coding and predistortion for the nonlinear distortion compensation /
[ Heung Gyoon Ryu;Yun Hee Lee ] / IEEE Trans. on Consumer Electronics   DOI   ScienceOn
4 Effects of clipping and filtering on the performance of OFDM /
[ Xiaodong Li;Cimini, L. J. Jr. ] / IEEE Communications Letters
5 PAPR reduction using soft clipping and ACI rejection in OFDM system /
[ Heung Gyoon Ryu;Byoung li Jin;In Bae Kim ] / IEEE Trans. on Consumer Electronics   DOI   ScienceOn
6 Reducing the peak-to-average power ratio of multicarrier modulation by selective mapping /
[ R. W. Bauml;R. F. H. Fischer;J. B. Huber ] / IEE Electronic Letters   DOI   ScienceOn
7 Adaptive linearization of power amplifier in orthogonal multicarrier schemes /
[ D. Di Zenobio;G. Santella;F. Mazzenga ] / IEEE Wireless Comm. System Symposium