Space-division multiplexed elastic optical networks (SDM-EONs) utilizing multi-core fiber (MCF) have been considered to address the growing traffic demand in transport networks. The quality of transmission (QoT) of MCF-based SDM-EONs is affected by inter-core and intra-core physical layer impairments (PLIs). This paper proposes an inter-core crosstalk-aware and intra-core impairment-aware algorithm for modulation, core, and spectrum assignment (CIA-MCSA) in MCF-based SDM-EONs. The CIA-MCSA considers PLI estimation in a dynamic traffic scenario and allocates new lightpaths using strategies to avoid blocking by insufficient QoT of the new lightpath and of already active lightpaths. Using numerical simulation, the performance of the CIA-MCSA is compared with five algorithms proposed by other authors, considering two distinct network topologies, heterogeneous traffic demands, and different levels of inter-core crosstalk. The results show that, when compared with the most competitive of the other algorithms, $\left(i\right)$ CIA-MCSA achieves an average reduction of the request blocking probability by at least 33.87%; $\left(ii\right)$ CIA-MCSA achieves an average reduction of the bandwidth blocking probability by at least 20.74%; and $\left(iii\right)$ CIA-MCSA increases the network spectrum utilization by at least 3.04%.

利用多芯光纤（MCF）的空分复用弹性光网络（SDM-EON）已被认为可以满足传输网络中不断增长的流量需求。基于 MCF 的 SDM-EON 的传输质量 (QoT) 受到核心间和核心内物理层损伤 (PLIs) 的影响。本文提出了一种用于基于 MCF 的 SDM-EON 中的调制、核心和频谱分配 (CIA-MCSA) 的核心间串扰感知和核心内损伤感知算法。CIA-MCSA 考虑动态流量场景中的 PLI 估计，并使用策略分配新的光路，以避免因新光路和已活动光路的 QoT 不足而造成阻塞。使用数值模拟，考虑两种不同的网络拓扑、异构流量需求和不同级别的核心间串扰，将 CIA-MCSA 的性能与其他作者提出的五种算法进行比较。结果表明，与其他最具竞争力的算法相比，$（我）$CIA-MCSA 实现请求阻塞概率平均降低至少 33.87%；$（我我）$CIA-MCSA实现带宽阻塞概率平均降低至少20.74%；和$（我我我）$CIA-MCSA 使网络频谱利用率至少提高 3.04%。