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Erschienen in: Wireless Personal Communications 1/2016

01.07.2016

Performance of Vector Perturbation MU-MIMO Systems in a Composite Fading Channel

verfasst von: Rui Chen, Changle Li, Jiandong Li, Xuelian Cai

Erschienen in: Wireless Personal Communications | Ausgabe 1/2016

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Abstract

In this paper, we analyze the performance of vector perturbation (VP) precoded multiuser multiple-input multiple-output (MU-MIMO) systems in a composite fading channel including not only small-scale Rayleigh fading but also large-scale fading for getting useful conclusion in a more realistic scenario. Through the derivation of average power of sphere-encoded vectors, we obtained the closed-form expression of the sum rate tight lower bound of VP precoded MU-MIMO systems, which is a function of the number of transmit/receive antennas, transmit power and large-scale fading parameters. From the analytical expression of sum rate and error probability bounds, it is concluded that the performance of VP precoded MU-MIMO systems deteriorates severely when intended users experience very different large-scale fadings. Simulation results validate our analysis.

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Metadaten
Titel
Performance of Vector Perturbation MU-MIMO Systems in a Composite Fading Channel
verfasst von
Rui Chen
Changle Li
Jiandong Li
Xuelian Cai
Publikationsdatum
01.07.2016
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 1/2016
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-016-3256-2

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