Design of Auto-Configurable Random Access NOMA for URLLC Industrial IoT Networking
Artikel i vetenskaplig tidskrift, 2024

Low power devices are massively deployed to facilitate real time sensing and data transmission requested in low power wide-area network (LPWAN). However, the dominating signaling, i.e. continuous phase modulation (CPM), barely gains attention in the context of supporting massive connectivity, not to mention ultra-reliable low-latency communications (URLLC), a primary concern in industrial network automation. To this end, auto-configurable nonorthogonal multiple access (AC-NOMA) based on CPM signaling is proposed. The term auto-configuration is used since each device selects a setup from a pool of configurations whenever connecting to the access point in a random and distributive way. It is proven, using ideal power allocation and phase shaping technique, AC-NOMA offers drastically improved user load and near capacity performance even in finite blocklength regime. Moreover, to enable massive yet sporadic access, slotted ALOHA is combined with AC-NOMA. It is proven that the resultant scheme outperforms power-domain NOMA in terms of throughput even with reduced transmit power and simple forward error correction schemes such as repetition and convolutional coding. The throughput is further improved using semi AC-NOMA with slightly increased latency. It is demonstrated that both designs can support very high user load while enabling URLLC in finite blocklength regime, where the packet size is merely 256 bits while the error rate is $10^{-5}$, which are also desirable in a number of applications including satellite communications, visible light communications, etc.

auto-configuration

throughput

NOMA

Ultra reliable low latency communication

Industrial Internet of Things

Resource management

ALOHA

NOMA

phase shaping

Forward error correction

ultra-reliable low-latency communications

power allocation

random access

Throughput

Informatics

low power wide-area network

continuous phase modulation

Författare

Li Bing

Northwestern Polytechnical University

Yating Gu

Northwestern Polytechnical University

Tor Aulin

Chalmers, Data- och informationsteknik, Nätverk och system

Jue Wang

China Electronic Technology Group Corporation

IEEE Transactions on Industrial Informatics

1551-3203 (ISSN) 19410050 (eISSN)

Vol. 20 1 190-200

Ämneskategorier

Telekommunikation

Kommunikationssystem

DOI

10.1109/TII.2023.3257841

Mer information

Senast uppdaterat

2024-01-25