Solyman, Ahmed and Weiss, Stephan and Soraghan, John (2012) Chirp-based multicarrier modulation. In: 9th IMA International Conference on Mathematics in Signal Processing, 2012-12-17 - 2012-12-20.
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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.
|Item type:||Conference or Workshop Item (Paper)|
|Keywords:||chirp-based, multicarrier modulation, Electrical engineering. Electronics Nuclear engineering|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering
Technology and Innovation Centre > Sensors and Asset Management
|Depositing user:||Pure Administrator|
|Date Deposited:||03 Jan 2013 14:53|
|Last modified:||02 Apr 2017 13:12|