한국정보처리학회:학술대회논문집 (Proceedings of the Korea Information Processing Society Conference)
- 한국정보처리학회 2005년도 춘계학술발표대회
- /
- Pages.1481-1484
- /
- 2005
- /
- 2005-0011(pISSN)
- /
- 2671-7298(eISSN)
PAPR Reduction and BER Improvement for OFDM System using WH Transform and Data Grouping Technique
-
Kong, Hyung-Yun
(Department of Electrical Engineering, University of Ulsan) ;
- Khuong, Ho-Van (Department of Electrical Engineering, University of Ulsan)
- 발행 : 2005.05.13
초록
In this paper, we propose a novel OFDM-based system structure to reduce PAPR (Peak-to-Average Power Ratio) and improve BER for OFDM system in which BER enhancement is obtainable based on WH (Walsh-Hadamard) transform to transmit concurrently each data symbol on all subcarriers so as to take advantage of frequency diversity and remedy the effect of channel's frequency-selectivity. By doing so, we also attain a low PAPR. Moreover, DGT (Data Grouping Technique) that is independent on the side information is also applied to further reduce PAPR. The simulation programs have been also performed to verify the validity of the proposed system.
키워드