NOMA-ALOHA With Prioritized Burst Repetition for Machine-Type Communications

This correspondence paper considers nonorthogonal multiple access (NOMA)-assisted slotted ALOHA (NOMA-ALOHA) for machine-type communications. NOMA-ALOHA is a hybrid ALOHA, where the transmitted information exploits NOMA in the physical layer and slotted ALOHA protocol in the medium access control (M...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2024-11, Vol.73 (11), p.17864-17868
Main Authors: Ramatryana, I Nyoman Apraz, Satrya, Gandeva Bayu, Budiman, Gelar, Mnaouer, Adel Ben
Format: Article
Language:English
Subjects:
Access control
burst repetition
Load modeling
machine-type communications
Media Access Protocol
NOMA
NOMA-ALOHA
Nonorthogonal multiple access
priority
Protocols
Repetition
Signal to noise ratio
Throughput
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Summary:This correspondence paper considers nonorthogonal multiple access (NOMA)-assisted slotted ALOHA (NOMA-ALOHA) for machine-type communications. NOMA-ALOHA is a hybrid ALOHA, where the transmitted information exploits NOMA in the physical layer and slotted ALOHA protocol in the medium access control (MAC) layer. In addition, a prioritized burst repetition (PBR) is proposed to improve the throughput of NOMA-ALOHA. The main idea is to reduce collision by exploiting burst repetition based on priority in MAC and iterative cancellation in the receivers. The asymptotic throughput is derived using density evolution, and the simulation results validate that PBR substantially improves the existing NOMA-ALOHA.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2024.3427352