DPSK和NRZ调制信号对透明光网络中的大功率串扰攻击容忍度研究(英文)  

Tolerance in high-powered crosstalk attack of DPSK and NRZ in transparent optical networks

作　　者：黄琼[1] 尹鹏飞[1] 孙泽宇[1] 

机构地区：[1]重庆邮电大学移动通信技术重点实验室,重庆400035

出　　处：《重庆邮电大学学报（自然科学版）》2012年第2期144-147,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：The National Natural Science Foundation of China(60972070);The Science and Technology Research Project of Chongqing Municipal Education Commission of China(KJ100514)

摘　　要：透明光网络受到越来越多的关注,已成为未来网络发展的一大趋势。然而,网络的透明性也带来了光层攻击的隐患,例如大功率的攻击信号可以利用带内串扰效应对网络实施攻击行为。由于差分移相键控(differential phase-shift-keying,DPSK)对带内串扰具有较好的容忍度,因此对它能否抵抗大功率带内串扰攻击进行了探讨。通过在VPI仿真软件上搭建光通信系统,并检测信号的BER,发现DPSK对带内串扰攻击的容忍度比不归零码(non-return-zero,NRZ)高9 dB,可见其具有更强的抗攻击能力。Transparent optical network is now becoming increasingly attractive,but transparency will induce security threats,such as intra-channel crosstalk attack in optical networks.Differential phase-shift-keying（DPSK） attracted more attention due to its high tolerance in intra-channel crosstalk.In this paper,DPSK is employed to mitigate high-powered intra-channel crosstalk attack.Via VPItransMakerTM,an optical communication system is simulated to detect the BER penalty of DPSK modulated signals.The results indicate that DPSK has about 9dB tolerance of intra-channel crosstalk attack than non-return-zero（NRZ）,which makes DPSK have more advantages to affront potential high-powered crosstalk attack in TON.

关 键 词：带内串扰攻击 差分移相键控(DPSK) 透明光网络 

分 类 号：TN929.11[电子电信—通信与信息系统]