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Localized Mode DFT-S-OFDMA Implementation Using Frequency and Time Domain Interpolation


This paper presents a novel method to generate a localized mode single-carrier frequency division multiple access (SC-FDMA) waveform. Instead of using DFT-spread OFDMA (DFT-S-OFDMA) processing, the new structure called SCiFI-FDMA relies on frequency and time domain interpolation followed by a user-specific frequency shift. SCiFI-FDMA can provide signal waveforms that are compatible to DFT-S-OFDMA. In addition, it provides any resolution of user bandwidth allocation for the uplink multiple access with comparable computational complexity, because the DFT is avoided. Therefore, SCiFI-FDMA allows a flexible choice of parameters appreciated in broadband mobile communications in the future.

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Correspondence to Ari Viholainen.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Viholainen, A., Ihalainen, T., Rinne, M. et al. Localized Mode DFT-S-OFDMA Implementation Using Frequency and Time Domain Interpolation. EURASIP J. Adv. Signal Process. 2009, 750534 (2009).

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