Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems
Salah, M., Abdel-Fadeel, G., Nossair, Z. (2009). Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems. EKB Journal Management System, 13(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009), 1-12. doi: 10.21608/asat.2009.23520
Mohamed Salah; Gamal Abdel-Fadeel; Zaki B. Nossair. "Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems". EKB Journal Management System, 13, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009, 2009, 1-12. doi: 10.21608/asat.2009.23520
Salah, M., Abdel-Fadeel, G., Nossair, Z. (2009). 'Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems', EKB Journal Management System, 13(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009), pp. 1-12. doi: 10.21608/asat.2009.23520
Salah, M., Abdel-Fadeel, G., Nossair, Z. Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems. EKB Journal Management System, 2009; 13(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009): 1-12. doi: 10.21608/asat.2009.23520

Peak to Average Power Ratio Reduction in Single Carrier OFDMA Systems

International Conference on Aerospace Sciences and Aviation Technology
Article 24, Volume 13, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT- 13, May 26 – 28, 2009, May 2009, Page 1-12  XML PDF (493.64 K)
Document Type: Original Article
DOI: 10.21608/asat.2009.23520
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Authors
Mohamed Salah1; Gamal Abdel-Fadeel2; Zaki B. Nossair3
1Teach. Assist., MTI University.
2Prof. Dr., Helwan University.
3Associate Prof. Dr., Helwan University.
Abstract
Single carrier frequency division multiple access (SC-FDMA) which utilizes single carrier modulation at the transmitter and frequency domain equalization at the receiver is a technique that has similar performance and essentially the same overall structure as those of an OFDMA system. One prominent advantage over OFDMA is that the SC-FDMA signal has lower peak-to-average power ratio (PAPR). SC-FDMA has drawn great attention as an attractive alternative to OFDMA, especially in the uplink communications where lower PAPR greatly benefits the mobile terminal in terms of the transmit power efficiency. SC-FDMA is currently a working assumption for the uplink multiple access scheme in 3GPP Long Term Evolution (LTE). To achieve low PAPR, a novel scheme, SC-OFDMA with super frame using intermediate mapping (SF-IFDMA), is proposed in this paper. In our proposed scheme, B frames with N subcarriers will be combined into one super frame, then SC-OFDM technique is applied to reduce the PAPR of the super frame, the super frame with lowered PAPR will finally be divided into B OFDM frames for the transmission. The combining and dividing process is equivalent to the concatenation process. The proposed scheme requires no side information and can significantly reduce PAPR while maintaining small number of subcarriers.
Keywords
Single carrier OFDMA with intermediate mapping (IFDMA); IFDMA with super frame (SF-IFDMA); peak to average power ratio (PAPR)
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