Title :
A 128/256-point pipeline FFT/IFFT processor for MIMO OFDM system IEEE 802.16e
Author :
Li, Simeng ; Xu, Huxiong ; Fan, Wenhua ; Chen, Yun ; Zeng, Xiaoyang
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
fDate :
May 30 2010-June 2 2010
Abstract :
In this paper, we present a novel 128/256-point FFT/ IFFT processor for the applications in IEEE 802.16e based on MIMO-OFDM. The pipeline FFT architecture is proposed to efficiently deal with 1-4 multiple data sequences, and increase the throughput. Furthermore, less hardware complexity is needed in our design compared with conventional individual parallel approach. The signal-to-quantization noise ratio (SQNR) is 42.7 dB. The proposed FFT has been designed in 0.13 μm technology with the core size of 1.470 × 1.469 mm2.
Keywords :
MIMO communication; OFDM modulation; WiMax; fast Fourier transforms; microprocessor chips; 128-point pipeline FFT-IFFT processor; 256-point pipeline FFT-IFFT processor; MIMO OFDM system IEEE 802.16e; hardware complexity; multiple data sequences; parallel approach; signal-to-quantization noise ratio; size 0.13 mum; Computational complexity; Costs; Delay; Discrete Fourier transforms; Hardware; MIMO; OFDM; Pipelines; Space technology; Throughput;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537355
