We evaluate the resource efficiency of Mode Group Division Multiplexing (MGDM) with shared path protection (SPP) in optical networks. On our case studies, SPP with MGDM obtains significant savings in terms of both additional backup spectrum occupation and MIMO-computing resources compared to other few-mode-transmission scenarios.

翻译：本文评估了光网络中采用模式组复用（MGDM）与共享路径保护（SPP）方案的资源效率。通过案例研究，我们发现相较于其他少模传输方案，结合MGDM的SPP在额外备份频谱占用和MIMO计算资源方面均实现了显著节约。