Multi-input R23SDF-kR for efficient FFT processor in MIMO-OFDM systems

IEICE Electronics Express

Kyu-yeul Wang¹  Seung-yerl Lee¹  Dong-sun Kim²  Duck-jin Chung¹  Byung-soo Kim¹ 

[1] School of Information and Communication Engineering, Inha University;Department of Advanced Mobile Technology Research Center, Korea Electronics Technology Institute

关键词: MIMO-OFDM;    FFT;    multi-input;    SDF;    MDC;   

DOI  :  10.1587/elex.6.1702

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(4)Cited-By(1)In this paper, we propose a multi-input R23SDF-kR architecture for efficient FFT processor in MIMO-OFDM systems with n-antennas at the transmitter and receiver. The proposed architecture is based on R23SDF for low complexity and it is operated to k times clock rate for multi-stream processing like MDC pipeline method in MIMO-OFDM systems. The proposed multi-input R23SDF-kR processor reduces the hardware complexity with similar or less computation in comparison of conventional MDC methods. Comparison results show that the proposed R23SDF-4R and R23SDF-8R reduce the area about 58% and 76% compared with the most area-efficient methods at 4 × 4 and 8 × 8MIMO channels, respectively.

【 授权许可】

Unknown