CAJ | 학술논문

本论文利用双变量泊松点过程对无线ad hoc广播网络和非法窃听网络共存的网络场景进行建模，运用随机几何工具，研究了无线ad hoc网络的保密广播传输容量，其定义为未发生窃听中断的广播发送节点密度、广播发送节点的相邻接收节点数量的平均值与保密速率的乘积。针对一般衰落和瑞利衰落信道条件，论文推导了造成保密中断的相邻窃听节点数量的平均值和保密广播传输容量的表达式。分析结果表明，与不存在相关性的网络场景相比，广播网络和窃听网络间的相关性会带来的保密广播传输容量的损失。
본논문이용쌍변량박송점과정대무선ad hoc엄파망락화비법절은망락공존적망락장경진행건모，운용수궤궤하공구，연구료무선ad hoc망락적보밀엄파전수용량，기정의위미발생절은중단적엄파발송절점밀도、엄파발송절점적상린접수절점수량적평균치여보밀속솔적승적。침대일반쇠락화서리쇠락신도조건，논문추도료조성보밀중단적상린절은절점수량적평균치화보밀엄파전수용량적표체식。분석결과표명，여불존재상관성적망락장경상비，엄파망락화절은망락간적상관성회대래적보밀엄파전수용량적손실。
We use bivariate Poisson point process(BPPP) to model the scenario where a wireless ad hoc broadcast network coexists with a wiretapping network .By using stochastic geometry tools ,we study the secrecy broadcast transmission capacity of wireless ad hoc network ,which is defined as the product among the spatial density of broadcast transmissions without secrecy out-age ,the average number of neighbors of a broadcasting node ,and the secrecy rate .We first derive the average number of eavesdrop-ping neighbors that causes secrecy outage and then characterize the secrecy broadcast transmission capacity over general fading and Rayleigh fading channels .Finally ,numerical results are presented to show that in comparison to the case without correlation ,the cor-relation between the legitimate nodes and the eavesdroppers degrades the secrecy broadcast transmission capacity .