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The Effect of Clipping on the Spectrum and BER of IFDMA Signal with Pulse Shaping  

Park, Seung-Yong (부산대학교 정보컴퓨터공학부 차세대방송통신연구실)
Kim, Jeong-Goo (부산대학교 정보컴퓨터공학부 차세대방송통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.11C, 2009 , pp. 1106-1112 More about this Journal
Abstract
The SC-FDMA(single carrier-frequency division multiple access) was recently adopted as the uplink multiple access scheme from 3GPP LTE(3rd Generation Partnership Project Long Tenn Evolution) due to its low PAPR (Peak-to-averaged power ratio). The bandwidth of IFDMA(interleaved FDMA), one of the sub-carrier mapping methods of SC-FDMA, gets narrower as the roll-off factor of RRC(root raised cosine) filter decreases from 1 to 0, whereas its PAPR can increase significantly. In practice, to increase the power efficiency of an amplifier, signals with high PAPR undergo the process of clipping. Clipping of signals may cause regeneration of high-frequency components as well as distortion of signals. The current paper deals with the effect of clipping on the spectrum and BER of IFDMA signals with RRC filters.
Keywords
IFDMA; SC-FDMA; PAPR; Clipping;
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Times Cited By KSCI : 1  (Citation Analysis)
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