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Delay-Aware Digital Twin Synchronization in Mobile Edge Networks with Semantic Communications by Li, Bin; Cai, Haichen; Liu, Lei; Fei, Zesong is a scholarly article available to read on EtoBox.

What is Delay-Aware Digital Twin Synchronization in Mobile Edge Networks with Semantic Communications about?

The synchronization of digital twins (DT) serves as the cornerstone for effective operation of the DT framework. However, the limitations of channel capacity can greatly affect the data transmission efficiency of wireless communication. Unlike traditional communication methods, semantic communication transmits the intended meanings of physical objects instead of raw data, effectively saving bandwidth resource and reducing DT synchronization latency. Hence, we are committed to integrating semantic communication into the DT synchronization framework within the mobile edge computing system, aiming to enhance the DT synchronization efficiency of user devices (UDs). Our goal is to minimize the average DT synchronization latency of all UDs by jointly optimizing the synchronization strategy, transmission power of UDs, and computational resource allocation for both UDs and base station. The formulated problem involves sequential decision-making across multiple coherent time slots. Furthermore, the mobility of UDs introduces uncertainties into the decision-making process. To solve this challenging optimization problem efficiently, we propose a soft actor-critic-based deep reinforcement lear

Author

Li, Bin; Cai, Haichen; Liu, Lei; Fei, Zesong

Published

2025

Language

EN