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BER Performance Comparison and Evaluation of 5G Candidate Waveforms Based on DFT Spreading under the Nonlinear HPA
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 Title & Authors
BER Performance Comparison and Evaluation of 5G Candidate Waveforms Based on DFT Spreading under the Nonlinear HPA
An, Changyoung; Ryu, Heung-Gyoon;
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 Abstract
High PAPR (Peak-to-Average Power Ratio) characteristic causes some problems like system performance degradation and OOB (Out-of-Band) power increasement under the HPA (High Power Amplifier) nonlinearity condition. UFMC (Universal Filtered Multi-Carrier) and FBMC (Filter Bank Multi-Carrier) are regarded as 5G(Generation) candidate waveforms. In this paper, we evaluate and analyze performance of these systems with DFT-s (Discrete Fourier Transform Spreading) technique under the nonlinear HPA environment. In this paper, we describe OFDM (Orthogonal Frequency Division Multiplexing), UFMC, FBMC, DFT-s-OFDM, DFT-s-UFMC, and DFT-s-FBMC system, and evaluate BER (Bit Error Rate) performance of these systems. As simulation results, BER performance degradation by HPA nonlinearity of DFT-s-OFDM and DFT-s-UFMC is greatly overcome by DFT spreading technique. However, BER performance degradation by HPA nonlinearity of DFT-s-FBMC system is little overcome.
 Keywords
DFT spreading;DFT-s-OFDM;DFT-s-FBMC;DFT-s-UFMC;HPA nonlinearity;
 Language
Korean
 Cited by
1.
비선형 고전력 증폭기를 가진 이종 직교주파수분할다중화 시스템에서 스펙트럼 공유/중복 효과에 대한 연구,이성복;박재현;박재철;강규민;

한국통신학회논문지, 2016. vol.41. 12, pp.1707-1714 crossref(new window)
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