Title
Memory Efficient Ifft Design For Ofdm-Based Applications
Abstract
In this paper, we propose a new memory efficient IFFT design method for OFDM-based applications, based on a signed integer mapping of three IFFT input signals which are composed of modulated data, pilot and null signals. The proposed method focuses on reducing the word size of memory in the first two stages of the single-path delay feedback (SDF) IFFT architectures since the first two stages require 75% of the overall memory. By Synopsys simulation of the first two stages of IFFT, it is shown that the proposed method achieves about 40% reduction in area and 44% reduction in power consumption compared with the previous work.
Year
DOI
Venue
2013
10.1587/elex.10.20130530
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
IFFT, SDF, feedback memory reduction
Computer architecture,Computer science,Electronic engineering,Orthogonal frequency-division multiplexing,Embedded system
Journal
Volume
Issue
ISSN
10
21
1349-2543
Citations 
PageRank 
References 
1
0.43
0
Authors
4
Name
Order
Citations
PageRank
In-Gul Jang173.39
Kyung Ju Cho27211.76
Yong-Hwan Kim314020.06
Jin-Gyun Chung416928.63