Robust Transmission Scheduling Mechanism for Millimeter Wave Train-to-Train System With Priority Weighting

Currently, millimeter wave technology is used to carry a large number of 5G-R wireless services, such as train control information and passenger demand. This will make the train-to-train (T2T) communication system face the challenge of higher data capacity. In this article, we consider the communica...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology Vol. 74; no. 4; pp. 6035 - 6047
Main Authors: Wei, Yao, Ma, Yunhan, Niu, Yong, Han, Zhu, Zhao, Xu, Lu, Bin, Dong, Mingyang, Guan, Ke, Ao, Shaoyou
Format: Journal Article
Language:English
Published: New York IEEE 01.04.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
5G mobile communication
Algorithms
Approximation algorithms
Communication
Communication systems
Communications systems
Complexity
Control theory
Doppler effect
Dynamic scheduling
Graph theory
High-speed railway
Millimeter wave communication
Millimeter wave technology
Millimeter waves
Mixed integer
Nonlinear programming
Optimization
Optimization algorithms
Priority scheduling
Rail transportation
Relay
Relays
Reliability
Robustness
Scheduling
Simulation
transmission scheduling
Travel demand
Wave packets
Weighting
ISSN:0018-9545, 1939-9359
Online Access:Get full text
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Summary:Currently, millimeter wave technology is used to carry a large number of 5G-R wireless services, such as train control information and passenger demand. This will make the train-to-train (T2T) communication system face the challenge of higher data capacity. In this article, we consider the communication between two trains running forward and backward on the same track. However, the 5G-R network has corresponding priority management according to the business application attributes, and different data flows between trains have different scheduling priorities. Therefore, our aim is to maximize the number of completed flows in the system with scheduling priority weighting. We deployed mobile relays on the roof of the train to provide relay assistance for the T2T communication link, and establish a mixed integer nonlinear programming optimization problem with a priority weighted system to maximize the number of flows. In order to reduce the computational complexity of the system, we propose an efficient and robust transmission scheduling optimization algorithm based on graph theory. This optimization algorithm consists of a relay node selection algorithm and a transmission scheduling algorithm. Finally, as shown in system simulation, the proposed algorithm can approximate system performance while reducing system computational complexity. In comparison with the baseline scheme in the literature, the proposed algorithm has significant performance improvement.
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ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2024.3510523