论文标题
一般连接拓扑的基于攻击抗脉冲的同步策略
An Attack-Resilient Pulse-Based Synchronization Strategy for General Connected Topologies
论文作者
论文摘要
由于传感器网络和无线通信的应用增加，脉冲耦合振荡器（PCOS）的同步最近引起了重大关注。鉴于无线传感器网络的分布式和无人看管的性质，必须增强基于脉冲的同步对恶意攻击的弹性。但是，对于全面的网络，获得了大多数现有的有关弹性PCO同步的结果。我们提出了一种新的基于脉冲的同步机制，以提高PCO同步的弹性，该机制适用于一般连接的拓扑。在拟议的同步机制下，我们严格地表征了隐秘拜占庭攻击的条件，并证明在有多个隐形的拜占庭式攻击者的情况下，可以保证合法振荡器的完美同步，而不管攻击者是否相互串通。即使合法振荡器的初始阶段被广泛分布在半个圆圈中，这与大多数现有的攻击弹性同步算法（包括Lamport and Melliar-Smith [1]需要A先验（几乎）先验（几乎）同步的同步器中的同步器之间的较明显的差异，这种新机制也可以保证弹性同步。给出数值模拟结果以确认理论结果。
Synchronization of pulse-coupled oscillators (PCOs) has gained significant attention recently due to increased applications in sensor networks and wireless communications. Given the distributed and unattended nature of wireless sensor networks, it is imperative to enhance the resilience of pulse-based synchronization against malicious attacks. However, most existing results on resilient PCO synchronization are obtained for all-to-all networks. We propose a new pulse-based synchronization mechanism to improve the resilience of PCO synchronization that is applicable under general connected topologies. Under the proposed synchronization mechanism, we rigorously characterize the condition for stealthy Byzantine attacks and prove that perfect synchronization of legitimate oscillators can be guaranteed in the presence of multiple stealthy Byzantine attackers, irrespective of whether the attackers collude with each other or not. The new mechanism can guarantee resilient synchronization even when the initial phases of legitimate oscillators are widely distributed in a half circle, which is in distinct difference from most existing attack-resilient synchronization algorithms (including the seminal paper from Lamport and Melliar-Smith [1]) that require a priori (almost) synchronization among legitimate oscillators. Numerical simulation results are given to confirm the theoretical results.
