Cart (Loading....) | Create Account
Close category search window
 

Cost-efficient design and fixed-point analysis of IFFT/FFT processor chip for OFDM systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Chen, Ting-Yuan ; Graduate Institute of Electronics Engineering and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan ; Yi-Hsien Lin ; Chih-Feng Wu ; Chorng-Kuang Wang

In this paper, a cost-efficient raultiplierless IFFT/FFT processor with its fixed-point error analysis is presented. The IFFT/FFT processor employs the radix-2/4/8 algorithm, and a proposed classification of twiddle factors (TW) and hardware sharing are used to minimize the nonzero bits of the shift-and-adds operations. After the appropriate wordlengths (WL) of the TWs and the IFFT/FFT processor input are chosen by the proposed fixed-point quantization noise analysis, a hardwarelike fixed-point simulation model of the IFFT/FFT processor is used to develop the Verilog RTL code. The proposed IFFT/FFT processor can achieve packet error rate(PER) less than 0.1 for the test vehicle IEEE 802.11a single-input-single-output (SISO)-OFDM system and slight symbol error rate(SER) loss for the IEEE 802.11n multi-input-multi-output (MIMO)-OFDM system. The core area of the one processor chip is 0.57umx0.565um with 0.18um CMOS process. Besides, the power consumption is 7.74 mW with 1.8 V supply voltage and 40 Mhz system clock.

Published in:

VLSI Design, Automation and Test (VLSI-DAT), 2011 International Symposium on

Date of Conference:

25-28 April 2011

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.