Blockchain has been witnessed a growing application in mobile communication. The application field ranges from the Internet of Things (IoT), Vehicle to Everything (V2X), Mobile Edge Computing (MEC), etc. The conjunction with blockchain can significantly avoid data tempering and protect user privacy. Although blockchain guarantees the security of mobile communication, the operation cost is increasing. The consensus algorithm of blockchain drives multiple untrust parties to keep data consistency, and it generates a large number of communication overheads. In this letter, we focus on the Byzantine Fault Tolerance (BFT) type of consensus and conduct a performance model. By utilizing the deterministic network calculus method, we analyze the delay bound of the Practical Byzantine Fault Tolerance (PBFT) and HotStuff consensus algorithm. The result of the simulation provides a valuable guideline for delay-sensitive blockchain-based applications.

中文翻译：

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使用网络演算对基于区块链的应用程序的共识通信进行延迟分析

区块链在移动通信中的应用越来越广泛。应用领域涵盖物联网（IoT）、车联网（V2X）、移动边缘计算（MEC）等，与区块链结合可以显着避免数据回火，保护用户隐私。区块链虽然保证了移动通信的安全，但运营成本却在增加。区块链的共识算法驱动多个不信任方保持数据的一致性，产生了大量的通信开销。在这封信中，我们关注拜占庭容错 (BFT) 类型的共识并进行性能模型。利用确定性网络演算方法，我们分析了实用拜占庭容错（PBFT）和HotStuff共识算法的延迟界限。