This paper describes a new comparison-based model for fault diagnosis in wireless ad hoc networks. Fault diagnosis is crucial for ensuring the dependability of systems. Wireless ad hoc networks are highly prone to faults as consequence of their dynamical conditions. The comparison approach is a practical diagnosis model that has been used to develop self-diagnosis systems in wired and wireless networks. This approach can detect and diagnose hard and soft faults in systems. The traditional fault diagnostic models were designed for static networks. Thus, they cannot provide complete and correct fault diagnosis in mobile wireless networks. In this paper, we introduce a time-free self-diagnosis model that respects the design requirements of mobile wireless networks. That is, it adapts to the topology’s changes, it imposes no known bounds on time delays, and it requires limited network information. Further, we develop a fault diagnosis protocol that can correctly diagnose faulty nodes undergoing static and dynamic faults in mobile ad-hoc networks (MANETs). Both an analytical model and a simulation study have been used to prove and evaluate the efficiency of our protocol under various scenarios. Furthermore, the performance of our protocol is compared with related protocols. The results show that our proposed protocol is efficient in terms of communication and time complexity.

本文介绍了一种新的基于比较的无线自组织网络故障诊断模型。故障诊断对于确保系统的可靠性至关重要。无线自组网由于其动态条件而极易出现故障。比较方法是一种实用的诊断模型，已被用于开发有线和无线网络中的自诊断系统。这种方法可以检测和诊断系统中的硬故障和软故障。传统的故障诊断模型是为静态网络设计的。因此，它们无法在移动无线网络中提供完整而正确的故障诊断。在本文中，我们介绍了一种无时间的自诊断模型，该模型尊重移动无线网络的设计要求。也就是说，它适应拓扑的变化，它没有对时间延迟施加任何已知限制，并且它需要有限的网络信息。此外，我们开发了一种故障诊断协议，可以正确诊断移动自组网（MANET）中发生静态和动态故障的故障节点。分析模型和模拟研究都已被用来证明和评估我们在各种情况下协议的效率。此外，我们的协议的性能与相关协议进行了比较。结果表明，我们提出的协议在通信和时间复杂度方面都是有效的。分析模型和模拟研究都已被用来证明和评估我们在各种情况下协议的效率。此外，我们的协议的性能与相关协议进行了比较。结果表明，我们提出的协议在通信和时间复杂度方面都是有效的。分析模型和模拟研究都已被用来证明和评估我们在各种情况下协议的效率。此外，我们的协议的性能与相关协议进行了比较。结果表明，我们提出的协议在通信和时间复杂度方面都是有效的。