Research Article
Unlicensed Assisted Ultra-Reliable and Low-Latency Transmission
@INPROCEEDINGS{10.1007/978-3-030-94763-7_11, author={Qiqi Xiao and Jiantao Yuan and Rui Yin and Wei Qi and Celimuge Wu and Xianfu Chen}, title={Unlicensed Assisted Ultra-Reliable and Low-Latency Transmission}, proceedings={Mobile Networks and Management. 11th EAI International Conference, MONAMI 2021, Virtual Event, October 27-29, 2021, Proceedings}, proceedings_a={MONAMI}, year={2022}, month={1}, keywords={URLLC Finite block length regime Unlicensed band DCM Spectrum allocation Power allocation}, doi={10.1007/978-3-030-94763-7_11} }- Qiqi Xiao
Jiantao Yuan
Rui Yin
Wei Qi
Celimuge Wu
Xianfu Chen
Year: 2022
Unlicensed Assisted Ultra-Reliable and Low-Latency Transmission
MONAMI
Springer
DOI: 10.1007/978-3-030-94763-7_11
Abstract
Theultra-reliable and low-latency communication(URLLC) has many potential applications in theInternet of Things(IoTs). This paper exploits both the licensed and unlicensed spectrums to support the URLLC transmissions, alleviating the lack of licensed spectrum resources, and adopts theduty-cycle muting(DCM) to ensure fair coexistence with the WiFi network. The user grouping scheme, mini-slot frame structure, and finite block length regime are used to guarantee low latency and high reliability. Meanwhile, to reduce the power consumption at the URLLC devices, we establish a minimum power optimization model and provide the globally optimal solutions. Simulation results are presented to verify the feasibility and effectiveness of the proposed scheme, which can not only reduce the power consumption at the devices, but also improve the system spectrum efficiency.
