Using NOMA for Enabling Broadcast/Unicast Convergence in 5G Networks

This paper addresses the challenge of broadcast and unicast convergence by proposing a PHY/MAC (Physical Layer/Medium Access Control) architecture for 5G New Radio (NR). The solution is based on Power domain Non Orthogonal Multiple Access (P-NOMA). The main PHY/MAC configuration parameters have been...

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Bibliographic Details
Published in:IEEE transactions on broadcasting 2020-06, Vol.66 (2), p.503-514
Main Authors: Iradier, Eneko, Montalban, Jon, Fanari, Lorenzo, Angueira, Pablo, Zhang, Liang, Wu, Yiyan, Li, Wei
Format: Article
Language:English
Subjects:
5G mobile communication
Access control
Broadband
broadcast
Computer simulation
Configurations
Convergence
Frequency division multiplexing
LDM
MAC
Network latency
Network reliability
NOMA
Nonorthogonal multiple access
OFDM
P-NOMA
Performance tests
Reliability
Time division multiplexing
Unicast
Wireless networks
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Summary:This paper addresses the challenge of broadcast and unicast convergence by proposing a PHY/MAC (Physical Layer/Medium Access Control) architecture for 5G New Radio (NR). The solution is based on Power domain Non Orthogonal Multiple Access (P-NOMA). The main PHY/MAC configuration parameters have been analyzed theoretically and their impact on the service configurations is presented in this manuscript. The system concept has been translated into a prototype model and different evaluation tests are presented. First, simulations show that the PHY layer performs better than Time Division Multiplexing/Frequency Division Multiplexing (TDM/FDM) choices of current broadband access systems. Second, performance tests using a network simulation tool are described. The results for capacity, latency and reliability demonstrate that the proposed solution offers an excellent broadcast/unicast convergence choice with significant gain values with respect to legacy PHY/MAC alternatives.
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2020.2981759