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Journal Article
DCT/DST-based frequency modulated-OFDM
- Authors
- Gosan Noh, Wooram Shin, Kyeongpyo Kim, Eunkyung Kim
- Issue Date
- 2025-03
- Citation
- ICT EXPRESS, v.권호미정, pp.1-4
- 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, Frequency domain(FD), Frequency modulated, Information science, Link Performance, Open access, Orthogonal Frequency-Division Multiplexing(OFDM), Peak to average Power ratio(PAPR), discrete Fourier Transform
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC ND)
(CC BY NC ND)
