一种用于无线传感器和行动者网络中行动者-行动者连接恢复的混合方法

A. Zamanifar, M. Sharifi, Omid Kashefi
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引用次数: 22

摘要

无线传感器和行动者网络由功能强大的行动者和资源约束传感器组成,它们在无线网络中相互连接。在某些应用程序中,参与者必须相互通信以做出适当的决策并执行协调的操作。参与者-参与者网络连接对于此类应用中的网络至关重要。由于WSAN应用程序大多部署在恶劣的环境中,参与者节点可能会出现故障并对其网络进行分区。本文提出了一种相对高效的分布式方法,通过识别关键参与者和网络的连接支配集,在任何参与者失效时恢复参与者-参与者连接。这种混合方法有助于更精确地检测关键节点和候选替代参与者,同时最大限度地减少网络恢复所需的消息总数。以主动的方式处理参与者的失败。该方法使参与者的总运动量和网络恢复时间最小化。当一个失败的参与者是关键节点时,以协调的方式重新定位其邻居中的参与者以重新连接参与者网络。仿真实验验证了该方法的优越性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Hybrid Approach to Actor-Actor Connectivity Restoration in Wireless Sensor and Actor Networks
Wireless sensor and actor networks (WSANs) consist of powerful actors and resource constraint sensors, which are linked together in wireless networks. In some applications, actors must communicate with each other to make appropriate decisions and perform coordinated actions. Actor-actor network connectivity is vital to networks in such applications. Since WSAN applications are mostly deployed in harsh environments, actor nodes may fail and partition their network. This paper proposes a comparatively more efficient distributed approach to restore actor-actor connectivity upon the failure of any actor by identifying critical actors as well as the connectivity dominating set of the network. This hybrid method helps in detecting critical nodes and candidate replacement actors more precisely while minimizing the total number of required messages for network restoration. Handling the failure of the actors is done in a proactive manner. The proposed approach minimizes both the total actors' movements and restoration time of network. When a failed actor is a critical node, actors in its neighborhood are relocated in a coordinated way to reconnect the actor network. The superiority of the proposed approach is validated through simulative experiments.
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