CAJ | 학술논문

针对异质无线传感网络的覆盖性能测试评估困难的问题，提出了一种基于目标移动轨迹的评估方法。该方法通过改进覆盖势力剖分算法（CFA）对异质网络的覆盖势力剖分，运用兼顾单节点覆盖性能与距离的薄弱点排序模型，并以轨迹暴露量及轨迹长度为指标，定性、定量地分析评估了传感网络覆盖性能。实验结果表明，改进后的算法（ICFA）对于异／同质网络覆盖性能的评估均适用，且与基于网格的贪婪算法相比，具有算法复杂度低和本地化的优点。
침대이질무선전감망락적복개성능측시평고곤난적문제，제출료일충기우목표이동궤적적평고방법。해방법통과개진복개세력부분산법（CFA）대이질망락적복개세력부분，운용겸고단절점복개성능여거리적박약점배서모형，병이궤적폭로량급궤적장도위지표，정성、정량지분석평고료전감망락복개성능。실험결과표명，개진후적산법（ICFA）대우이／동질망락복개성능적평고균괄용，차여기우망격적탐람산법상비，구유산법복잡도저화본지화적우점。
Aiming at the problem of the coverage performance test and assessment in heterogeneous wireless sensor networks, this paper proposed an evaluation method based on the target trajectory.This evaluation methods putd forward an improved al-gorithm of CFA for heterogeneous network coverage forces split,it used a model of weak spots ranking which was related with single node coverage performance and distance,and to trajectory exposure and trajectory length as index,qualitative and quanti-tative evaluated the sensor network coverage performance.Experimental results show that compared to the greedy algorithm based on grid,the improved algorithm(ICFA),which is applicable to both heterogeneous and homogeneous wireless sensor net-works coverage performance evaluation,shows its superiority in lower algorithm complexity and localization.