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Communication Dans Un Congrès Année : 2019

Multiple antenna receiver under impulsive SαS noise

Résumé

In a usual MIMO framework when noise is assumed Gaussian, the channel matrix can be estimated with a Least Square approach. In addition, the Euclidean distance is optimal to detect the transmitted symbol. However, in dynamic interference, the Gaussian assumption is no longer valid. In this case, the alpha-stable model is better suited and the receiving strategy fails. In this paper we present a MIMO communication system based on QPSK modulation, Alamouti coding, 2 transmitting antennas, M receiving antennas and supervised channel estimation. We propose to modify both the channel estimation method and the distance metric to improve the receiver strategies. The Least Absolute Deviation estimator is used to estimate the channel matrix, instead of Least Squares, and the p-norm replaces the Euclidean distance (for which p = 2), with an estimator for the value of p. Our approach outperforms the traditional method.
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Dates et versions

hal-03270115 , version 1 (24-06-2021)

Identifiants

Citer

Nicolas de Araujo Moreira, Laurent Clavier. Multiple antenna receiver under impulsive SαS noise. WCNC 2019, 17th IEEE Wireless Communications and Networking Conference, Apr 2019, Marrakech, Morocco. 6 p., ⟨10.1109/WCNC.2019.8885790⟩. ⟨hal-03270115⟩
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