NDLI: A dual-application low-power FFT processor for WLAN-integrated SD-OCT systems

Content Provider	IEEE Xplore Digital Library
Author	Song-Nien Tang Fu-Chiang Jan Kun-Ta Wu Guo-Zua Wu
Copyright Year	2012
Description	Author affiliation: Medical Image Technology Department, 3D System & Application Division, Electronics and Optoelectronics Research Laboratories, Industrial Technology Research Institute, Chuntung, Hsinchu, Taiwan, R.O.C. (Song-Nien Tang; Fu-Chiang Jan; Kun-Ta Wu; Guo-Zua Wu)
Abstract	This paper presents a dual-application FFT processor for spectral domain optical coherence tomography (SD-OCT) systems integrated with a wireless local area networking (WLAN) module. A high-radix multimode FFT kernel together with the four-path memory-data access scheme is proposed to improve the hardware efficiency. By the proposed memory-based architecture, multimode 2048/1024-point FFT×2 (for SD-OCT) or 128/64-point FFT×4 (for WLAN) can be performed in an energy-efficient manner. A test chip has been designed using a TSMC 0.18µm process with a core area of 4.12 $mm^{2}.$ Through post-layout simulation, the power consumption is 69.2 mW and 72.7 mW at 40 MHz for OCT/2048-point FFT×2 and WLAN/128-point FFT×4 modes, respectively. Compared to the referred, the power saving of 26%∼53% can be achieved using the proposed design.
Starting Page	457
Ending Page	460
File Size	873739
Page Count	4
File Format	PDF
ISBN	9781467315005
e-ISBN	9781467315012
DOI	10.1109/GCCE.2012.6379657
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-02
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN FFT (Fast Fourier Transform) Power demand WLAN (Wireless Local Area Networking) Coherence Tomography Throughput Kernel OCT (Optical Coherence Tomography) Biomedical imaging
Content Type	Text
Resource Type	Article

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