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Ensuring Long-Term Data Integrity: ETCS Data Integrity Requirements Can Be Fulfilled Even under Unfavorable Conditions with the Proper LTE Mechanisms

机译:确保长期数据完整性:即使在不利条件下,使用适当的LTE机制,也可以满足ETCS数据完整性要求

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摘要

The European Train Control System (ETCS) is the leading signaling system for train command and control. In the future, ETCS may be delivered over long-term evolution (LTE) networks. Thus, LTE performance offered to ETCS must be analyzed and confronted with the railway safety requirements. It is especially important to ensure the integrity of the ETCS data, i.e., to protect ETCS data against loss and corruption. In this article, various retransmission mechanisms are considered for providing end-to-end ETCS data integrity in LTE. These mechanisms are validated in simulations, which model worst-case conditions regarding train locations, traffic load, and basestation density. The simulation results show that ETCS data integrity requirements can be fulfilled even under these unfavorable conditions with the proper LTE mechanisms.
机译:欧洲火车控制系统(ETCS)是用于火车指挥和控制的领先信号系统。将来,ETCS可能会通过长期演进(LTE)网络交付。因此,必须分析提供给ETCS的LTE性能,并应对铁路安全要求。确保ETCS数据的完整性,即保护ETCS数据免受丢失和损坏,这一点尤其重要。在本文中,考虑了各种重传机制以在LTE中提供端到端ETCS数据完整性。这些机制在仿真中得到了验证,该仿真可以模拟最坏情况下的火车位置,交通负荷和基站密度。仿真结果表明,即使在这些不利条件下,采用适当的LTE机制,也可以满足ETCS数据完整性要求。

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