NOMA with zero-forcing V-BLAST
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
NOMA with zero-forcing V-BLAST
Auteur(s) :
Ozyurt, Serdar [Auteur correspondant]
Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Télécommunication, Interférences et Compatibilité Electromagnétique - IEMN [TELICE - IEMN]
Farah, Joumana [Auteur]
Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Télécommunication, Interférences et Compatibilité Electromagnétique - IEMN [TELICE - IEMN]
Farah, Joumana [Auteur]
Titre de la revue :
IEEE Communications Letters
Pagination :
2070-2074
Éditeur :
Institute of Electrical and Electronics Engineers
Date de publication :
2020-09
ISSN :
1089-7798
Mot(s)-clé(s) en anglais :
NOMA
Silicon carbide
Interference
Resource management
Antennas
Downlink
Channel state information
Multiple-input multiple-output
non-orthogonal multiple access
zero-forcing V-BLAST
average sum rate
Silicon carbide
Interference
Resource management
Antennas
Downlink
Channel state information
Multiple-input multiple-output
non-orthogonal multiple access
zero-forcing V-BLAST
average sum rate
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
In this study, power-domain non-orthogonal multiple access (NOMA) is combined with zero-forcing (ZF) vertical Bell Labs layered space-time (V-BLAST) technique. Motivated by the fact that the successive interference ...
Lire la suite >In this study, power-domain non-orthogonal multiple access (NOMA) is combined with zero-forcing (ZF) vertical Bell Labs layered space-time (V-BLAST) technique. Motivated by the fact that the successive interference cancellation (SIC) is a pivotal element in either technique, we thoroughly investigate the impact of SIC on inter-user and inter-layer interference. A two-user downlink scenario is investigated where a multi-antenna base station with no instantaneous channel state information simultaneously communicates with two users each with multiple antennas. The average sum rate of the considered system is analytically derived in an exact form. Correspondingly, the power allocation value on each substream is optimized such that the average sum rate is maximized. We show that when the classical power-domain NOMA idea is incorporated into the ZF V-BLAST algorithm, the far user cannot completely cancel inter-layer interference. Nonetheless, the proposed approach turns out to yield an average sum rate performance near to that of a higher-complexity method based on maximum likelihood detection.Lire moins >
Lire la suite >In this study, power-domain non-orthogonal multiple access (NOMA) is combined with zero-forcing (ZF) vertical Bell Labs layered space-time (V-BLAST) technique. Motivated by the fact that the successive interference cancellation (SIC) is a pivotal element in either technique, we thoroughly investigate the impact of SIC on inter-user and inter-layer interference. A two-user downlink scenario is investigated where a multi-antenna base station with no instantaneous channel state information simultaneously communicates with two users each with multiple antennas. The average sum rate of the considered system is analytically derived in an exact form. Correspondingly, the power allocation value on each substream is optimized such that the average sum rate is maximized. We show that when the classical power-domain NOMA idea is incorporated into the ZF V-BLAST algorithm, the far user cannot completely cancel inter-layer interference. Nonetheless, the proposed approach turns out to yield an average sum rate performance near to that of a higher-complexity method based on maximum likelihood detection.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :