CAJ | 학술논문

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。
침대ZigBee통신중역조수동빈공격도치수거조새화실진문제，해문제출일충동빈공격검측모형。해모형이용신호빈보적고사분포규률화동빈공격대변환역폭치적영향진행동빈공격검측。재차기출상，통과감입공한빈대신도도변궤제화기우가변퇴피주기급접입개솔적자괄응퇴피산법，급출료동빈공격검측억제방안。실험결과표명，해문모형화방안가이유효저어동빈공격。
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.