Digital twins coordinate contributors to reduce network congestion
Conditional-Coverage Contributor Selection for Regional Digital Twins Under Mobility
Information Theory
Summary
Digital twins are digital copies of regions that need information from many contributors. When many contributors try to send data over crowded networks without fixed connections, it causes delays and overlaps. The authors created a method where the digital twin decides which contributors should send data based on how much new useful coverage they add and how busy the network is. This method uses a small beacon message to quickly score contributors before accepting them, leading to much better timely coverage compared to existing methods.
What this means in practice
- •For network schedulers: Improve admission of data contributors in mobile broadcast networks to reduce congestion and increase timely coverage.
- •For smart city operators: Coordinate sensor updates in regions without fixed infrastructure to maintain accurate real-time digital representations.
Authors
Tao Yu
Abstract
Regional digital twins (DTs) under mobility must coordinate contributor admission over congested broadcast networks without fixed infrastructure. Per-sender redundancy mitigation cannot make this set-level decision because only the host has a region-wide coverage map. Treating regional state as a public good, this letter develops a host-coordinated protocol admitting contributors whose timely, non-redundant coverage gain exceeds a congestion price within a cycle deadline. A 13-byte beacon digest enables pre-transmission scoring. Standards-based simulation shows the protocol reduces the timely actionable coverage deficit from 5.6\% to 1.4\% at load comparable to ETSI redundancy mitigation and by 26\% versus random admission at matched tight-budget load.