AUTHORS: Mohamed A. Aboul-Dahab, Esam A. A. A. Hagras, Kholoud M. Hassan Ali

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ABSTRACT: Single Carrier-Frequency Division Multiple Access-Code Division Multiple Access (SC-FDMACDMA) suffers from Carrier Frequency Offset (CFO) problem, chiefly for Long Term Evolution (LTE) uplink. In this paper, we present a proposed compensation technique to mitigate the impact of Inter-Carrier Interference (ICI) and Multiple-Access Interference (MAI). The proposed technique is compared with similar compensation techniques namely, Self-Cancellation and Single User Detector (SUD) techniques. Simulation results show improvement in BER performance compared to these techniques. In the presence Additive white Gaussian noise (AWGN), the proposed Minimum Difference (MD) - Self-Cancellation technique outperforms the SelfCancellation and SUD techniques by 1.4 dB and 2.1 dB, respectively at BER =10-4. Also, in Rayleigh fading channel, it is observed that, the proposed MD-Self-Cancellation technique provides a minimum degradation compared to conventional Self-Cancellation and SUD techniques by about 1.1 dB and 3.9 dB, respectively.

KEYWORDS: SC-FDMA-CDMA, CFO, ICI, MAI.

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