摘要
Theme A large-scale heterogeneous network (HetNet) irdegrates different types of networks into one uniform network system in order to provide seamless on e-world n etwork coverage. In this perspective, HetNet in volves most important networks including the Inter net, mobile cellular networks, satellite networks, ocean-based networks, etc. Different from traditional isomorphic networks and other HetNets, a large-scale HetNet holds such characteristics as heterogeneity, distribution, multiple-operator domains, dynamic topology, self-organization, openness, high latency and scalability. These specific characteristics introduce new challenges in network management and cause severe security threats in many aspects and different layers. For example, identity management, trustworthy network access and handover, secure and intelligent routing, authentication/authorization/accounting (AAA) management, secure data transmission and key management, especially end-to-end secure communications.
