Continuous-Variable Quantum Key Distribution for Enabling Sustainable Secure 6G Networks
Michela Svaluto Moreolo, Masab Iqbal, Arturo Villegas, Laia Nadal, Ramon Casellas, Raül Muñoz
Abstract
Several technological challenges are currently posed by future 6G networks to support ultra-high capacity and dynamic connectivity, while ensuring environmental and societal sustainability, scalability, and reliability. Among them, security is a crucial aspect, particularly considering open and disaggregated networks. Continuous variable quantum key distribution (CV -QKD) is proposed as an appealing solution to ensure long-term security, while facilitating the coexistence with conventional optical communications for a sustainable integration of QKD technology in future 6G networks. In this work, the adoption of CV -QKD in future optical networks is discussed, focusing on the network resources and infrastructure sharing, exploring advanced features, flexibility and programmability, further enabled by software defined networking (SDN).