지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
As FFT(Fast Fourier Transform) processor is used in OFDM(Orthogonal Frequency Division Multiplesing) system. According to increase requirement about mobility and broadband, Research about low power and low area FFT processor is needed. So research concern in reduction of memory size and complex multiplier is in progress. Increasing points of FFT increase memory area of FFT processor. Specially, SRU(Signal Reordering Unit) has the most memory in FFT processor. In this paper, we propose a reduced method of memory size of SRU in FFT processor. SRU of 64, 1024 point FFT processor performed implementation by VerilogHDL coding and it verified by simulation. We select the APEX20KE family EP20k1000EPC672-3 device of Altera Corps. SRU implementation is performed by synthesis of Quartus Tool. The bits of data size decide by 24bits that is 12bits from real, imaginary number respectively. It is shown that, the proposed SRU of 64point and 1024point achieve more than 28%, 24% area reduction respectively.
목차
Abstract
1. 서론
2. FFT
3. Signal Reordering Unit
4. 구현
5. 결론
참고문헌
저자소개
참고문헌 (6)
참고문헌 신청
1. [인터넷자원] - Xiaofei Dong / / Implementing OFDM modulation for wireless communications
2. [학술지(정기간행물)] - F. Kristensen / 2003 / Flexible Baseband Transmitter for OFDM / Circuits, Signals, and Systems
3. [학술대회논문] - Jung-yeol Oh / 2005 / Area and Power Efficient Pipeline FFT Algorithm / Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference : 520 ~ 525
4. [학술대회논문] - Shousheng He / 1998 / Designing pipeline FFT processor for OFDM (de)modulation / Signals, Systems, and Electronics, 1998. ISSSE 98. 1998 URSI International Symposium : 257 ~ 262
5. [학술대회논문] - Son, B.S. / 2002 / A high-speed FFT processor for OFDM systems / Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on : III-281 ~ III-284
2. [학술지(정기간행물)] - F. Kristensen / 2003 / Flexible Baseband Transmitter for OFDM / Circuits, Signals, and Systems
3. [학술대회논문] - Jung-yeol Oh / 2005 / Area and Power Efficient Pipeline FFT Algorithm / Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference : 520 ~ 525
4. [학술대회논문] - Shousheng He / 1998 / Designing pipeline FFT processor for OFDM (de)modulation / Signals, Systems, and Electronics, 1998. ISSSE 98. 1998 URSI International Symposium : 257 ~ 262
5. [학술대회논문] - Son, B.S. / 2002 / A high-speed FFT processor for OFDM systems / Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on : III-281 ~ III-284
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UCI(KEPA) : I410-ECN-0101-2010-560-002246377