Rate region of the K-user MIMO interference channel with imperfect transmitters

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URI: http://hdl.handle.net/10902/20610
ISBN: 978-9-0827-9705-3
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Autoría
Soleymani, Mohammad; Santamaría Caballero, Luis IgnacioAutoridad Unican; Maham, Behrouz; Schreier, Peter J.
Fecha
2020
Derechos
© EURASIP. First published in the Proceedings of the 28th European Signal Processing Conference (EUSIPCO-2020) in 2020, published by EURASIP. IEEE is granted the nonexclusive, irrevocable, royalty-free worldwide rights to publish, sell and distribute the copyrighted work in any format or media without restriction.
Publicado en
28th European Signal Processing Conference (EUSIPCO), Amsterdam, Netherlands, 2020, 1638-1642
Editorial
Institute of Electrical and Electronics Engineers, Inc.
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Palabras clave
Achievable rate region
Additive hardware distortions
Difference of convex programming
Interference channel
MIMO systems
Resumen/Abstract
This paper studies the rate region of a multiple-input, multiple-output (MIMO) system with imperfect transmitters when interference is treated as noise at the receiver side. We consider a K-user MIMO interference channel (IC) in which the transmitters suffer from an additive hardware distortion (HWD) modeled as spatially uncorrelated Gaussian noise with covariance matrix proportional to the transmit covariance matrix. We employ the difference of convex programming (DCP) technique to solve the rate-region optimization problem and obtain its stationary points. Our proposed HWD-aware algorithm outperforms the HWD-unaware design that disregards HWD. Our results show that the performance of the K-user MIMO IC is highly affected by HWD, especially in high signal-to-noise-ratio scenarios.
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