Low complexity equalization of HCM systems with DPFFT demodulation over doubly-selective channels

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Li, Y., Sha, X., Zheng, F.-C. and Wang, K. (2014) Low complexity equalization of HCM systems with DPFFT demodulation over doubly-selective channels. IEEE Signal Processing Letters, 21 (7). pp. 862-865. ISSN 1070-9908 doi: 10.1109/LSP.2014.2311128

Abstract/Summary

To mitigate the inter-carrier interference (ICI) of doubly-selective (DS) fading channels, we consider a hybrid carrier modulation (HCM) system employing the discrete partial fast Fourier transform (DPFFT) demodulation and the banded minimum mean square error (MMSE) equalization in this letter. We first provide the discrete form of partial FFT demodulation, then apply the banded MMSE equalization to suppress the residual interference at the receiver. The proposed algorithm has been demonstrated, via numerical simulations, to be its superior over the single carrier modulation (SCM) system and circularly prefixed orthogonal frequency division multiplexing (OFDM) system over a typical DS channel. Moreover, it represents a good trade-off between computational complexity and performance.

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Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/39826
Item Type	Article
Refereed	Yes
Divisions	Science
Uncontrolled Keywords	Banded minimum mean square error (MMSE) equalization discrete partial fast Fourier transform (DPFFT) doubly-selective (DS) fading channel hybrid carrier modulation (HCM) system
Publisher	IEEE
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Date Deposited:	07 Apr 2015 13:56	Date item deposited into CentAUR
Last Modified:	09 Jun 2024 04:10	Date item last modified

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