Abstract
In this paper we demonstrate that in doubly-dispersive environments, a multicarrier (MC) system based on a fractional Fourier transform (FrFT) can achieve a better concentration of power near the main diagonal of the equivalent channel matrix compared to standard orthogonal frequency division multiplexing (OFDM). The resulting inter-symbol and inter-carrier interference in such a chirp- based MC system can therefore be suppressed with a reduced complexity equaliser. Simulations show that compared to an equalised OFDM system, the equalised FrFT-MC approach can either significantly reduce complexity or enhance performance in a time-varying environment.
| Original language | English |
|---|---|
| Pages | 1-4 |
| Number of pages | 4 |
| Publication status | Published - 17 Dec 2012 |
| Event | 9th IMA International Conference on Mathematics in Signal Processing - Birmingham, United Kingdom Duration: 17 Dec 2012 → 20 Dec 2012 |
Conference
| Conference | 9th IMA International Conference on Mathematics in Signal Processing |
|---|---|
| Country | United Kingdom |
| City | Birmingham |
| Period | 17/12/12 → 20/12/12 |
Keywords
- chirp-based
- multicarrier modulation
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Cite this
Solyman, A., Weiss, S., & Soraghan, J. (2012). Chirp-based multicarrier modulation. 1-4. Paper presented at 9th IMA International Conference on Mathematics in Signal Processing , Birmingham, United Kingdom.