Browsing by Author "Smaili, N."

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    Beamspace Unitary ESPRIT Parameter Channel Estimation for Pilot Contamination Mitigation
    (Institute of Electrical and Electronics Engineers Inc., 2018) Smaili, N.; Djeddou, Mustapha; Chafaa, Irched; Azrar, Arab
    The main aim of this paper is to resolve a pilot contamination (PC) problem in multicell Massive MIMO system, where the PC is considered as a bottleneck in such systems caused by lack of orthogonality. To address this constrained problem, we propose a new approach based on beamspace unitary (BU) estimation of signal parameters via rotational invariance technique (ESPRIT) for parameter channel estimation. Indeed, the PC mitigation is based on two steps, channels parameter estimation and then reconstruction of desired channel by exploiting the path gains magnitude. The simulation results demonstrate the effectiveness of the proposed approach.