Abstract
Massive multiple-input multiple-output (M-MIMO) has been elected to be the bridge toward the fifth generation, however, the problem of pilot contamination (PC) bounds this emerging technology. This paper provides a novel mitigating strategy, which is referred to as pilot contamination suppression (PCS)-based coordination. The PCS strategy aims to, properly, coordinate the base stations (BSs) of a set of cells; hence, each BS can, accurately, estimates the channel state information of its supported user equipments (UEs). This without determining the angle-of-arrivals of the contaminating signals, but through controlling the allocation of the pilot sequences to the UEs of each cell. Simulation results prove the effectiveness of the proposed PCS strategy in multi-cell M-MIMO systems.
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Belhabib, A., Amadid, J., Boulourd, M. et al. Pilot Contamination Suppression Based Coordination in Multi-cell Massive MIMO Systems. Wireless Pers Commun 125, 1883–1894 (2022). https://doi.org/10.1007/s11277-022-09638-6
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DOI: https://doi.org/10.1007/s11277-022-09638-6