One of the newest technologies to qualify transmission capacity of optical backbone networks is Space Division Multiplexing with Elastic Optical Networks (SDM-EONs). SDM-EON has the feasibility to add flexibility to Wavelength division Multiplexing (WDM) networks. In SDM-EON, connections can be setup more efficiently than WDM networks and EON without SDM. There are challenging issues in SDM-EON as fragmentation (created due to dynamically allocating and releasing allocated bandwidth of connections over time), impairments and physical layer security vulnerabilities caused by inter-core crosstalk. In this article, we introduce three novel algorithms to resolve crosstalk and maintain physical layer security level and reduce blocking probability in SDM-EON as called Minimum Crosstalk by fragmentation per cores (Min_Cross), Minimum Fragmentation by Crosstalk per cores (Min_Frag), and Moderate fragmentation and crosstalk (Mod_Frag_Cross). We consider multi-core fibers (MCFs) in EON and study how to setup lightpaths by considering the impairments and physical layer security leaks and attacks caused by inter-core crosstalk. We investigate spectrum, and core assignment algorithms to control physical-layer security attacks in order to reduce inter-crosstalk impairments as well as reducing Blocking Probability (BP) as our performance evaluation results show.

限制光骨干网传输容量的最新技术之一是弹性光网络（SDM-EON）的空分复用。SDM-EON可以为波分复用（WDM）网络增加灵活性。在SDM-EON中，可以比WDM网络和没有SDM的EON更加有效地建立连接。SDM-EON中存在具有挑战性的问题，如碎片（由于随着时间的推移动态分配和释放连接的分配带宽而产生），内核间串扰导致的损害和物理层安全漏洞。在本文中，我们介绍了三种新颖的算法来解决串扰问题，并维持物理层安全级别并降低SDM-EON中的阻塞概率，称为“最小串扰”，即每个核的分段数（Min_Cross），每个核心的串扰最小碎片（Min_Frag），以及中度碎片和串扰（Mod_Frag_Cross）。我们考虑多芯光纤（ EON）中的MCF （ MCF），并研究如何通过考虑内核间串扰造成的损害以及物理层安全性泄漏和攻击来设置光路。正如我们的性能评估结果所示，我们调查频谱和核心分配算法以控制物理层安全攻击，以减少串扰损害并降低阻塞概率（BP）。