Device redundancy is one of the most well-known mechanisms in distributed systems to increase the overall system fault tolerance and, consequently, trustworthiness. Existing algorithms in this regard aim to exchange a significant number of messages among nodes to identify and agree which communication links or nodes are faulty. This approach greatly degrades the performance of those wireless communication networks exposed to limited available bandwidth and/or energy consumption due to messages flooding. Lately, quantum-assisted mechanisms have been envisaged as an appealing alternative to improve the performance in this kind of communication networks and have been shown to obtain levels of performance close to the ones achieved in ideal conditions. The purpose of this paper is to further explore this approach by using super-additivity and superposed quantum trajectories in quantum Internet to obtain a higher system trustworthiness. More specifically, the wireless communication network that supports the permafrost telemetry service for the Antarctica together with five operational modes (three of them using classical techniques and two of them using quantum-assisted mechanisms) have been simulated. Obtained results show that the new quantum-assisted mechanisms can increase the system performance by up to a 28%.

翻译：设备冗余是分布式系统中提升整体系统容错能力进而增强可信性的最经典机制之一。现有相关算法通过节点间交换大量消息来识别并共识哪些通信链路或节点存在故障。这种基于消息洪泛的方法会严重制约受限于有限带宽和/或能量消耗的无线通信网络性能。近年来，量子辅助机制被视作改善这类通信网络性能的极具吸引力的替代方案，研究表明其性能可接近理想条件下的水平。本文旨在通过利用量子互联网中的超可加性与叠加量子轨迹来进一步探索该方法，以期获得更高的系统可信性。具体而言，我们对支持南极永久冻土遥测服务的无线通信网络及其五种运行模式（三种采用经典技术、两种采用量子辅助机制）进行了仿真。结果表明，新型量子辅助机制可使系统性能提升高达28%。