Event Details
Novel Adaptive Transmission for Effective URLLC Support in 5G and Beyond Wireless Systems: Reinforcement Learning based Designs
Presenter: Negin Sadat Saatchi
Supervisor:
Date: Tue, August 29, 2023
Time: 10:00:00 - 00:00:00
Place: ZOOM - Please see below.
ABSTRACT
Zoom Details:
Meeting link: https://uvic.zoom.us/j/87471884426?pwd=Um9HblBOZVUwY0RlRlVHWHVyNFZOUT09
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Abstract: The natural tension between achieving high reliability and guaranteeing low latency is a key challenge facing wireless systems in ultra-reliable low-latency communications (URLLC) service provision. To achieve the most effective solution, various reliability and latency mechanisms should be jointly designed. This work presents an innovative adaptive transmission design for 5G NR, jointly selecting parameters like numerology, mini-slot size, and modulation scheme. The approach maximizes successful data delivery while meeting latency constraints, formulated as a Markov Decision Process (MDP). Employing reinforcement learning, an optimal policy is derived. Numerical examples demonstrate the proposed design's superiority over conventional schemes, showcasing substantial performance improvements, especially in scenarios with limited latency budgets and poor channels. The design's applicability extends beyond 5G NR to future wireless systems with similar reliability and latency needs.