一种非对称耦合无线传感器网络同步控制模型

An Asymmetric Coupling Wireless Sensor Network Synchronization Control Model

  • 摘要: 无线传感器网络作为一种复杂网络,具有节点众多、拓扑时变等特点。研究传感器网络中的同步问题对于利用节点众多这一特点,实现MIMO协作信息传输、混沌保密通信等应用有着重要的意义。现有对于网络同步的研究大都集中于研究规则网络模型。然而对于无线传感器网络来说,由于无线信道的固有时变特性以及无线传感器网络节点易失效等原因造成了网络拓扑动态变化,从而给传感器网络同步问题的数学建模和分析造成了很大的困难。本文工作受到Belkh1工作的启发,提出一种非对称耦合传感器网络同步控制模型。该模型避开了讨论研究具体的网络拓扑结构下的网络同步问题,代之以从控制的角度研究如何改善网络同步性能。理论分析和实验结果表明该模型能够显著提高网络同步化性能。

     

    Abstract: The WSN(Wireless Sensor Network) is a certain kind of complex networks which characters large scale and time varying topology. To make good use of the large-scale character to realize MIMO cooperation signal transmission and chaotic secure communications, it is of great importance to solve the synchronization problem in WSNs. Most of works so far on the network synchronization focused on the regular networks. However, due to the time varying of wireless channel and the failure of nodes, which make the topology of WSNs vary with time, it is difficult to model and then analyze the WSN synchronization problem. Inspired by the work of Belkh, this paper presents an asymmetric coupling wireless sensor network synchronization control model. By the theory analysis and the example illustrated in the paper, it shows that this model can significantly improve the synchronization performance of networks.

     

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