• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

On Narrowband Interference Suppression in OFDM-based Systems with CDMA and Weighted-type Fractional Fourier Transform Domain Preprocessing


Abstract

In this paper, we propose a new scheme to suppress the narrowband interference (NBI) in OFDM-based systems. The scheme utilizes code division multiple access (CDMA) and weighted-type fractional Fourier transform (WFRFT) domain preprocessing technologies. Through setting the WFRFT order, the scheme can switch into a single carrier (SC) or a multi-carrier (MC) frequency division multiple access block transmission system. The residual NBI can be eliminated to the maximum extent when the WFRFT order is selected properly. Final simulation results show that the proposed system can outperform MC and SC with CDMA and frequency domain preprocessing in terms of the narrowband interference suppression.


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Cite this article

[IEEE Style]
Yuan Liang, Xinyu Da and Shu Wang, "On Narrowband Interference Suppression in OFDM-based Systems with CDMA and Weighted-type Fractional Fourier Transform Domain Preprocessing," KSII Transactions on Internet and Information Systems, vol. 11, no. 11, pp. 5377-5391, 2017. DOI: 10.3837/tiis.2017.11.011

[ACM Style]
Liang, Y., Da, X., and Wang, S. 2017. On Narrowband Interference Suppression in OFDM-based Systems with CDMA and Weighted-type Fractional Fourier Transform Domain Preprocessing. KSII Transactions on Internet and Information Systems, 11, 11, (2017), 5377-5391. DOI: 10.3837/tiis.2017.11.011