Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7018
Title: Max-Min Fair Precoder Design and Power Allocation for MU-MIMO NOMA
Authors: Yalçın, Ahmet Zahid
Çetin, Mustafa Kağan
Yüksel, Melda
Keywords: NOMA
Optimization
Base stations
Receivers
Downlink
Resource management
Complexity theory
Max-min fairness
mean square error
MIMO
MMSE
NOMA
precoder design
rate splitting
SDR
SCA
Issue Date: 2021
Publisher: IEEE-Inst Electrical Electronics Engineers Inc
Abstract: In this correspondence, transmit precoders and their power allocation coefficients are designed jointly for a downlink non-orthogonal multiple access (NOMA) wireless communication system. The objective is to provide max-min fairness (MMF) among the strongest users in each group, while maintaining minimum target rates for all the other users. The proposed solutions are respectively based on semi-definite relaxation (SDR) and successive convex approximation (SCA) and on the minimum mean square error (MMSE) approaches. For the latter approach, a simplification is also suggested to lower complexity. It is shown that while rate-splitting (RS) has the best MMF rates, the low-complexity MMSE approach has the least complexity. Moreover, the SDR/SCA approach offers an excellent tradeoff between the two.
URI: https://doi.org/10.1109/TVT.2021.3077504
https://hdl.handle.net/20.500.11851/7018
ISSN: 0018-9545
1939-9359
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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