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RÉDUCTION DE TREILLIS EN MODULATION TEMPORELLE, FRÉQUENTIELLE ET SPATIALE ORTHOGONALE
RÉDUCTION DE TREILLIS EN MODULATION TEMPORELLE, FRÉQUENTIELLE ET SPATIALE ORTHOGONALE
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摘要
Methods, systems and devices for lattice reduction in decision feedback equalizers for orthogonal time frequency space (OTFS) modulation are described. An exemplary wireless communication method, implementable by a wireless communication receiver apparatus, includes receiving a signal comprising information bits modulated using OTFS modulation scheme. Each delay-Doppler bin in the signal is modulated using a quadrature amplitude modulation (QAM) mapping. The method also includes estimating the information bits based on an inverse of a single error covariance matrix of the signal, with the single error covariance matrix being representative of an estimation error for all delay-Doppler bins in the signal.
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