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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 409 - 412 (4page)
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초록· 키워드
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In this paper, to reduce the memory size of inverse Fourier transform (IFFT) for OFDM-based applications, we propose a new IFFT design technique based on a signed integer mapping of three IFFT input signals: modulated data, pilot and null signals. The proposed method focuses on reducing the size of memory cells 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 cells. By Synopsys simulation of the first two stages of IFFT, it is shown that the proposed method achieves about 77.7% reduction in area compared with the conventional method, and about 36.9% reduction compared with CIM method.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. BACKGROUNDS
Ⅲ. IFFT INPUT MAPPING
Ⅳ. DESIGN EXAMPLE AND PERFORMANCE COMPARISONS
Ⅴ. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2014-569-000730031