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Lattice-Reduction-Aided Equalization for MIMO-FBMC Systems

Abstract : In this paper, we propose to use a lattice reduction (LR) approach to enhance the performance of spatial multiplexing (SM) multiple-input multiple-output (MIMO) systems using filter-bank multicarrier (FBMC) modulation. It is known that lattice-reduction-aided (LRA) MIMO receivers can achieve full spatial diversity. On the other hand, the presence of the intrinsic interference in FBMC is widely regarded as a factor that prevents the system from taking advantage of spatial diversity when combined with SM-MIMO. We will show that with an adequate adaptation to FBMC modulation, the LR approach can be performed in a straightforward manner. Simulation results show that an LRA equalizer allows an FBMC-MIMO system to benefit more from the available spatial diversity and offers an interesting performance gain compared to the existing solutions with reasonable complexity.
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Submitted on : Friday, February 7, 2020 - 10:06:30 AM
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Rostom Zakaria, Danilo Silva, Didier Le Ruyet. Lattice-Reduction-Aided Equalization for MIMO-FBMC Systems. IEEE Wireless Communications Letters, IEEE comsoc, 2019, 8 (1), pp.101-104. ⟨10.1109/LWC.2018.2859942⟩. ⟨hal-02470187⟩



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