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Journal Article
DCT/DST-based frequency modulated-OFDM
- Authors
- Gosan Noh, Wooram Shin, Kyeongpyo Kim, Eunkyung Kim
- Issue Date
- 2025-04
- Citation
- ICT EXPRESS, v.11, no.2, pp.235-238
- ISSN
- 2405-9595
- Publisher
- ELSEVIER
- Language
- English
- Type
- Journal Article
- Abstract
- Among the recent advancements in waveform design for wireless communication, the frequency-modulated orthogonal frequency-division multiplexing (FM-OFDM) has gained attention due to its resilience to phase noise and Doppler spread, as well as its zero-dB peak-to-average power ratio (PAPR). We propose two alternative frequency-time conversion schemes based on discrete cosine transform (DCT) and discrete sine transform (DST) that can potentially supplant discrete Fourier transform (DFT) within FM-OFDM. Extensive simulations demonstrate that FM-OFDM waveforms utilizing DCT and DST can improve link performance compared to those based on DFT. Furthermore, employing frequency-domain spreading with DCT/DST-based FM-OFDM shows additional link performance enhancements. 2024 The Korean Institute of Communications and Information Sciences. Publishing Services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
- KSP Keywords
- Discrete cosine Transform, Discrete sine transform(DST), Doppler spread, Fourier transform(FT), Frequency domain(FD), Information science, Link performance, Peak to average Power ratio(PAPR), Waveform design, discrete Fourier Transform, frequency modulated
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC ND)
(CC BY NC ND)
