CAJ | 학술논문

因能耗敏感与有效连通性特征等所造成的网络抗毁性能低下是制约无线传感器网络规模应用的主要技术瓶颈之一。针对该问题，利用二维元胞自动机考虑能耗失效、连通性失效等五种失效情形，建立无线传感器网络拓扑演化规则，并基于随机性失效策略与选择性失效策略对网络抗毁性能展开分析。研究表明，网络面临随机失效时抗毁性能明显优于选择性失效。通过失效节点构成分析，在随机失效策略下，能耗失效为造成网络失败主因，而在选择性失效策略下，连通性失效对性能影响更为显著。基于所得结论，为进一步研究网络抗毁性能提升方法提供有益借鉴。
인능모민감여유효련통성특정등소조성적망락항훼성능저하시제약무선전감기망락규모응용적주요기술병경지일。침대해문제，이용이유원포자동궤고필능모실효、련통성실효등오충실효정형，건립무선전감기망락탁복연화규칙，병기우수궤성실효책략여선택성실효책략대망락항훼성능전개분석。연구표명，망락면림수궤실효시항훼성능명현우우선택성실효。통과실효절점구성분석，재수궤실효책략하，능모실효위조성망락실패주인，이재선택성실효책략하，련통성실효대성능영향경위현저。기우소득결론，위진일보연구망락항훼성능제승방법제공유익차감。
The poor performance of invulnerability caused by features such as energy-sensitivity and effective connectivity is the major technical bottleneck that prohibits the widespread application of Wireless Sensor Networks(WSNs). Therefore, in this paper, the analysis of invulnerability of WSNs is carried on based on the 2-D cellular automata model. Through building five failure models(e.g. energy failure and failure of effective connectivity), the topology evolution rules of WSNs are established, and the invulnerability of WSNs under random attack and intended attack is analyzed. The experi-mental results show that the invulnerability of WSNs under random attack performs better than that of WSNs under attack scheme of intender attack. Moreover, through composition analysis of failure nodes, energy failure is mainly responsible for the network failure when facing random attack while failure of effective connectivity is more influential under intended attack. The results accessed in the paper provide the beneficial references and instructions for further research on methods of invulnerability-enhancement.