Literature Database Entry

qi2026distributed

Senmao Qi, Yifei Zou, Li Yang, Jiguo Yu, Xiuzhen Cheng, Falko Dressler and Dongxiao Yu, "Distributed Fast and Fair Physical-to-Virtual Communications in Digital Twin Edge Networks," IEEE Transactions on Mobile Computing, 2026. (to appear)

Abstract

Physical-to-Virtual Communication (PTVC) is essential for Digital Twin Edge Networks (DITENs) to synchronize physical objects with their digital twins. In practice, update messages from physical objects to their digital twins often have different priorities based on their urgency, necessitating priority-aware scheduling to ensure that critical messages are updated with low latency. While existing approaches can achieve fairness by collecting global priority information and solving optimization problems, when the number and priorities of nodes change, it takes substantial communication resources to timely update the global priority information in large-scale edge networks. To address these limitations, we propose DFF-PTVC, a fully distributed fast and fair communication algorithm where each end node makes scheduling decisions without requiring knowledge of other nodes’ priorities. Through an edge-end collaborative framework, the edge server adaptively broadcasts a meta probability to manage channel contention, while each end node autonomously determines its transmission probability by combining the meta probability with its local priority. We rigorously prove that DFF-PTVC achieves asymptotically optimal throughput of Ω(1), guarantees expected latency of O(Kn/k) for messages with priority k, and ensures weighted fairness, where n is the number of end nodes and K is the upper bound of message priority. We further develop DFF-PTVC-DRL, a deep reinforcement learning variant for enhanced performance when the edge server has sufficient computational resources. Extensive simulations demonstrate that our distributed algorithms, using only local priority information, achieve performance within a small constant factor of the centralized optimal solution that requires global network knowledge.

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Senmao Qi
Yifei Zou
Li Yang
Jiguo Yu
Xiuzhen Cheng
Falko Dressler
Dongxiao Yu

BibTeX reference

@article{qi2026distributed,
    author = {Qi, Senmao and Zou, Yifei and Yang, Li and Yu, Jiguo and Cheng, Xiuzhen and Dressler, Falko and Yu, Dongxiao},
    note = {to appear},
    title = {{Distributed Fast and Fair Physical-to-Virtual Communications in Digital Twin Edge Networks}},
    journal = {IEEE Transactions on Mobile Computing},
    issn = {1536-1233},
    publisher = {IEEE},
    year = {2026},
   }
   
   

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Last modified: 2026-09-26