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Telecommunication Systems
Erschienen in: Telecommunication Systems 2/2022

27.08.2022

Interference suppression in heterogeneous massive MIMO systems with imperfect CSI

verfasst von: Rana Sedghi, Masoumeh Azghani

Erschienen in: Telecommunication Systems | Ausgabe 2/2022

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Abstract

Interference management is of paramount importance in heterogeneous massive mimo networks (HetNet). In this paper, an algorithm has been suggested to suppress the interference in large-MIMO HetNets with imperfect channel state information(CSI). The proposed technique controls both the intra-tier and cross-tier interference of the macrocell as well as the small cells. The intra-tier interference of the macrocell as well as the cross-tier interference have been minimized under maximum transmission power and minimum signal to interference and noise ratio (SINR) constraint. The channel estimation error matrix has also been modeled using the joint sparsity property. The precoding algorithm is thus achieved through the application of semi-definite relaxation and block coordinate descent techniques. The intra-tier interference of the small cells are addressed with the aid of the zero forcing scheme. The proposed method has been validated through various simulations which confirm the superiority of the algorithm over its counterparts.
Vorheriger Artikel Joint downlink user power allocation and rate maximization in UAV relay assisted SWIPT-NOMA network

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Metadaten
Titel
Interference suppression in heterogeneous massive MIMO systems with imperfect CSI
verfasst von
Rana Sedghi
Masoumeh Azghani
Publikationsdatum
27.08.2022
Verlag
Springer US
Erschienen in
Telecommunication Systems / Ausgabe 2/2022
Print ISSN: 1018-4864
Elektronische ISSN: 1572-9451
DOI
https://doi.org/10.1007/s11235-022-00932-z

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