ZigBee同频攻击检测抑制模型研究

针对ZigBee通信中易遭受同频攻击导致数据阻塞和失真问题，该文提出一种同频攻击检测模型。该模型利用信号频谱的高斯分布规律和同频攻击对变换域幅值的影响进行同频攻击检测。在此基础上，通过嵌入空闲频带信道跳变机制和基于可变退避周期及接入概率的自适应退避算法，给出了同频攻击检测抑制方案。实验结果表明，该文模型和方案可以有效抵御同频攻击。

Co-channel Attack Detection and Suppression Model for ZigBee Network Nodes

Co-channel attack may cause data blocking and distortion in ZigBee networks. To resolve the issues, a model to detect co-channel attack is proposed. According to the Gauss distributed characteristics of the signal spectrum and the influence of co-channel attack on transform-domain amplitude, the proposed model can perceive whether the co-channel attack is existent in ZigBee network. On this basis, a scheme to detect and restrain co-channel attack is provided by embedding the free band channel-hop mechanism and self-adaption algorithm based on variable backoff cycle and access probability. Finally, experimental results indicate that the proposed model and scheme can inhibit the co-channel attack?efficiently.