Single Carrier FDMA (SC-FDMA)
From Wikipedia, the free encyclopedia
Single carrier frequency division multiple access (SC-FDMA), which utilizes single carrier modulation and frequency domain equalization is a technique that has similar performance and essentially the same overall complexity as those of OFDMA system. One prominent advantage over OFDMA is that the SC-FDMA signal has lower peak-to-average power ratio (PAPR) because of its inherent single carrier structure. 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 transmit power efficiency. It is currently a working assumption for uplink multiple access scheme in 3GPP Long Term Evolution (LTE), or Evolved UTRA.
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[edit] Transmitter and Receiver Structure of SC-FDMA
- DFT: Discrete Fourier Transform
- IDFT: Inverse Discrete Fourier Transform
- CP: Cyclic Prefix
- PS: Pulse Shaping
- DAC: Digital-to-Analog Conversion
- RF: Radio Frequency
- ADC: Analog-to-Digital Conversion
[edit] References
Hyung G. Myung, Junsung Lim, and David J. Goodman, “Single Carrier FDMA for Uplink Wireless Transmission”, IEEE Vehicular Technology Magazine, vol. 1, no. 3, Sep. 2006, pp. 30-38
H. Ekström, A. Furuskär, J. Karlsson, M. Meyer, S. Parkvall, J. Torsner, and M. Wahlqvist, “Technical Solutions for the 3G Long-Term Evolution,” IEEE Commun. Mag., vol. 44, no. 3, March 2006, pp. 38–45
3rd Generation Partnership Project (3GPP); Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN), http://www.3gpp.org/ftp/Specs/html-info/25913.htm
3rd Generation Partnership Project (3GPP); Technical Specification Group Radio Access Network; Physical Layer Aspects for Evolved UTRA, http://www.3gpp.org/ftp/Specs/html-info/25814.htm
D. Falconer, S. L. Ariyavisitakul, A. Benyamin-Seeyar, and B. Eidson, “Frequency Domain Equalization for Single-Carrier Broadband Wireless Systems,” IEEE Commun. Mag., vol. 40, no. 4, April 2002, pp. 58–66
H. Sari, G. Karam, and I. Jeanclaude, “Transmission Techniques for Digital Terrestrial TV Broadcasting,” IEEE Commun. Mag., vol. 33, no. 2, Feb. 1995, pp. 100–109
U. Sorger, I. De Broeck, and M. Schnell, “Interleaved FDMA - A New Spread-Spectrum Multiple-Access Scheme,” Proc. IEEE ICC ’98, Atlanta, GA, June 1998, pp. 1013–1017
H. G. Myung, J. Lim, and D. J. Goodman, "Peak-to-Average Power Ratio of Single Carrier FDMA Signals with Pulse Shaping", The 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC ’06), Helsinki, Finland, Sep. 2006
J. Lim, H. G. Myung, K. Oh, and D. J. Goodman, “Channel-Dependent Scheduling of Uplink Single Carrier FDMA Systems”, IEEE Vehicular Technology Conference (VTC) 2006 Fall, Montreal, Canada, Sep. 2006
