Precoding Design for Two-Cell MIMO-NOMA Uplink With CoMP Reception

An optimization framework for the precoder design of two-cell multiple-input multiple-output non-orthogonal multiple access (NOMA) uplink with a co-ordinated multipoint reception and orthogonal space-time block coding is formulated. A precoding scheme with closed-form beamforming and corresponding c...

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Bibliographic Details
Published inIEEE communications letters Vol. 22; no. 12; pp. 2607 - 2610
Main Authors Wang, Hong, Leung, Shu-Hung, Song, Rongfang
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2018
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Array signal processing
Beamforming
Block codes
CoMP
Design optimization
Interference
Iterative methods
MIMO
NOMA
Nonorthogonal multiple access
Optimization
Power management
Precoding
Signal to noise ratio
STBC
Uplink
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Summary:An optimization framework for the precoder design of two-cell multiple-input multiple-output non-orthogonal multiple access (NOMA) uplink with a co-ordinated multipoint reception and orthogonal space-time block coding is formulated. A precoding scheme with closed-form beamforming and corresponding computationally efficient iterative power allocation (PA) design is proposed to minimize the total transmit power subject to signal-to-interference-plus-noise ratio constraints. It is shown that the proposed NOMA scheme outperforms the NOMA with equal PA and orthogonal multiple access schemes because of its increased diversity and optimized PA.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2018.2874027