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ICI and PAPR Enhancement in MIMO-OFDM System Using RNS Coding

M. I. Youssef, A. E. Emam, and M. Abd Elghany
Electrical Engineering Department, Faculty of Engineering, Al- Azhar University, Cairo, Egypt

Abstract—The Inter-Carrier-Interference (ICI) is considered a bottleneck in the utilization of Multiple-Input-Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems, due to the sensitivity of the OFDM towards frequency offsets that losses the carrier orthogonality and generates signal interference that causes system performance degradation. In this paper Residue Numbers as a coding scheme is impeded in MIMO-OFDM systems, where the ICI levels is measured and evaluated with respect to the conventional ICI mitigation techniques as pulse shaping, windowing and self-cancellation techniques implemented in MIMO-OFDM system. The Carrier-to-Interference Ratio (CIR), the system Bit-Error-Rate (BER) and the Complementary Cumulative Distribution Function (CCDF) for MIMO-OFDM system with Residue Number System (RNS) coding are evaluated. The results demonstrated a performance enhancement of transmission model over the system without RNS implementation.

Index Terms— BER, CIR, ICI, Mitigation techniques, MIMO-OFDM system, RNS

Cite: M. I. Youssef, A. E. Emam, and M. Abd Elghany, "ICI and PAPR Enhancement in MIMO-OFDM System Using RNS Coding," Journal of Communications, vol. 14, no. 7, pp. 629-635, 2019. Doi: 10.12720/jcm.14.7.629-635