CAJ | 학술논문

为了在有恶意节点的情况下提高频谱的检测概率，并用更少的样本数来达到判决门限，提出一种基于正确判断能力的改进加权序贯频谱检测算法。该方法通过节点的正确判断能力对各个节点的似然比加权一个更优的系数，能够识别恶意节点并且利用恶意节点发送的数据。仿真结果表明，新算法能够在较少样本数的情况下获取较高的检测概率。
위료재유악의절점적정황하제고빈보적검측개솔，병용경소적양본수래체도판결문한，제출일충기우정학판단능력적개진가권서관빈보검측산법。해방법통과절점적정학판단능력대각개절점적사연비가권일개경우적계수，능구식별악의절점병차이용악의절점발송적수거。방진결과표명，신산법능구재교소양본수적정황하획취교고적검측개솔。
In order to improve the detection probability and to achieve the decision threshold with fewer samples while there are malicious nodes, a modified weighted sequential probability ratio test based on the nodes ability of correct decision is proposed, with which, a better weighted coefficient based on ability of correct decision can be optimized, thus, the malicious nodes can be found and the date transmitted by them can be practiced upon. Simulation results show that, with fewer samples, the proposed method obtains a higher detection probability than the original algorithm.