NDLI: Scalable FFT kernel designs for MIMO OFDM based communication systems

Content Provider	IEEE Xplore Digital Library
Author	Yin-Tsung Hwang Ying-Ji Chen Wei-Da Chen
Copyright Year	2007
Description	Author affiliation: Nat. Chung-Hsing Univ. Taichung, Taichung (Yin-Tsung Hwang)
Abstract	In this paper, we propose a novel scalable FFT processor design capable of handling various transform sizes and data channels for multi-standard MIMO processing. The basic building blocks are split-radix 2/4/8 FFT modules in a modified MDC (multi-path delay commutator) form, pre- ordering data buffer, radix-2 butterfly module and twiddle factor module. Via proper data flow reconfiguration plus two alternative working frequencies, the processor can support 64, 128, 512, 1024-point transforms plus 1 to 4 MIMO channels. The hardware utilization is kept as 100% under various working modes. The implementation results in TSMC 0.18 um process indicate the design has a core size of about 5.5 $mm^{2},$ and a power consumption of 320 mW at 100 MHz. The delivered performance qualifies the proposed design for 802.1 In and 802.16e applications.
Starting Page	1
Ending Page	4
File Size	237213
Page Count	4
File Format	PDF
ISBN	9781424412716
DOI	10.1109/TENCON.2007.4429110
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-30
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Kernel MIMO OFDM Hardware Process design Delay Computer architecture Scalability Wireless communication Energy consumption
Content Type	Text
Resource Type	Article

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