Open AccessImpact of condition number on total sum rate for NOMA systems
Author(s) -
VidalBeltrán S.,
LópezBonilla J.L.,
MartínezPiñón F.,
CuencaÁlvarez R.
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2020.1642
Subject(s) - subcarrier , noma , computer science , resource allocation , channel (broadcasting) , matching (statistics) , wireless , scheme (mathematics) , greedy algorithm , mathematical optimization , channel allocation schemes , telecommunications link , algorithm , mathematics , orthogonal frequency division multiplexing , computer network , telecommunications , statistics , mathematical analysis
In the fifth‐generation mobile communications networks, several resource allocation techniques have been used, such as static allocation and dynamic algorithms (greedy or matching theory); this work proposes a new subcarrier allocation scheme based on the evaluation of the instantaneous behaviour of the wireless channel using the condition number of the channel matrix H . Simulation results reveal that the proposed scheme increases the total sum rate of the system, compared to their predecessors.