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针对航空网络的特定功能和特点,提出两个衡量航空网络抗毁性的新测度指标。以流量为边权(EW),基于网络吞吐量给出了网络的运输可靠性度量;基于节点之间联通情况,提出一种精确反映网络联通的可达性度量。最后,基于不完全信息攻击模型,提出两种攻击策略,对2个新指标进行仿真验证。实验分析表明:在EW攻击策略下,网络表现出较差的运输可靠性,运输可靠性随着信息获取量的增加下降更明显,但具有较强的可达性,而且随着信息获取度的增加反而有减缓下降趋势;UEB(Unweighted Edge Betweenness)攻击策略下,网络具有较好的运输可靠性和可达性,但对信息获取度反应不同,网络运输可靠性几乎不受信息获取量影响,而网络可达性的下降速度随着信息获取量的增加出现一定的加快趋势。提出的两个测度从不同角度反映了网络在不同攻击模式下的抗毁性,具有较好的测度能力,证明了测度指标的有效性。
According to the specific functions and characteristics of aviation network, two new measures to measure the survivability of aviation network are proposed. Based on traffic throughput (EW), this paper gives a measure of network transport reliability based on network throughput. Based on the connectivity between nodes, a reachability measure that accurately reflects network connectivity is proposed. Finally, based on the incomplete information attack model, two attack strategies are proposed to simulate two new indicators. Experimental analysis shows that under the EW attack strategy, the network shows poor transport reliability. Transport reliability decreases more obviously with the increase of information acquisition, but it has stronger reachability. With the availability of information The network has better transportation reliability and reachability under the attack strategy of Unweighted Edge Betweenness (UEB). However, it responds differently to the degree of information acquisition, and the network transport reliability is hardly affected by the information acquisition amount. However, the declining speed of network accessibility tends to accelerate with the increase of information acquisition. The two proposed measures reflect the invulnerability of the network in different attack modes from different angles, have better measure ability, and prove the validity of the measure index.