Martingales-Based ALOHA-Type Grant-Free Access Algorithms for Multi-Channel Networks With mMTC/URLLC Terminals Co-Existence

• Published in: IEEE access Vol. 8; pp. 37608 - 37620
• Main Authors: Qi, Ruizhe, Chi, Xuefen, Zhao, Linlin, Yang, Wanting
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Bandwidth; Bandwidths; Delay; Delays; Fading channels; Grant-free access; Martingales; multi-channel; Network latency; Optimization; Packet transmission; Probability; Quality of service; Queuing theory; Random access; Reliability; Selective fading; service-martingales theory; Statistical analysis; Systems design; Terminals; Transmission rate (communications); ultra-reliable and low-latency communications (URLLCs); Uplink

As a simple single-phase transmission strategy, grant-free access is believed to be an effective way to guarantee the stringent quality of service (QoS) requirements for ultra-reliable low-latency communications (URLLCs). However, unless a theory-based fine evaluation on dynamic delay, we cannot hop...