Low complexity pipeline FFT processor for MIMO-OFDM systems

IEICE Electronics Express

Jaeseok Kim¹  Yunho Jung²  Sangmin Lee¹ 

[1] School of Electrical and Electronic Engineering, Yonsei University;Institute of TMS Information Technology, Yonsei University

关键词: FFT;    MIMO-OFDM;    pipeline;    mixed-radix;   

DOI  :  10.1587/elex.4.750

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)Cited-By(3)In this paper, we propose a low complexity pipeline FFT processor for MIMO-OFDM systems with four transmitting and four receiving (4 × 4) antennas. The proposed FFT processor is based on multi-channel structure which enables to support multiple data streams efficiently. With mixed-radix algorithm, the number of non-trivial multiplications of the proposed FFT processor are decreased. Implementation results show that the proposed FFT processor reduces the required number of logic gates by 25% over the conventional 4-channel R4MDC FFT processor which has been considered to be the most area-efficient FFT processor for 4 × 4 MIMO-OFDM systems.

【 授权许可】

Unknown