By Topic

A study of dynamic reconfigurable FFT processor for OFDM based cognitive radio

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

3 Author(s)
Nishi, K. ; Hokkaido Univ., Sapporo ; Yoshizawa, S. ; Miyanaga, Y.

Cognitive radio recognizes frequency use in space and time domains and improves frequency utilization efficiency and communication performance by selecting an optimal communication mode. This paper proposes a new method reducing circuit area for reconfigurable FFT processors with multiple communication modes in OFDM based cognitive radio. The proposed method offers the FFT stages with two dimensional arrays and dynamically changes the data path connections in the butterfly and FIFO memory blocks. In the CMOS implementation, this structure has reduced circuit area by 35% compared with the conventional circuit.

Published in:

Communications and Information Technologies, 2007. ISCIT '07. International Symposium on

Date of Conference:

17-19 Oct. 2007