海域多层次异构网络是一个多层次的集成海洋通信异构网络，具有岸基、船载、星基、空基、水下声/光基站多种接入、传输、信息汇聚的能力，同时根据不同的海上通信优先等级及不同的业务种类，其业务接入控制、异构组网以及资源优化调度技术面临巨大挑战。充分考虑该异构网络作为一个跨网和承载多用户与多业务的巨系统的复杂性，拟应用延迟容忍网络技术、协作技术、TD-LTE及软件定义网络技术等，探索海域多层次异构网络架构，研究基于DTN技术的船载互联网络，及空海协同的船舶延时容忍网络数据传输调度机制；探索水下声/光通信网络切换调度机制；然后在此基础上提出该异构网络的软件定义实现，特别是其最优目标网络选择机制。课题将为构建海域异构网络前期规划和性能估算提供理论依据和技术支撑。

Marine hierarchical-heterogeneous network is a multi-level integrated marine communication network, with shore-based, ship-based, star-based, space-based, underwater sound/light base station access, transmission and information aggregation capability. The access control, heterogeneous networking and resource optimization scheduling technology is facing enormous challenges, according to different priorities and types of services. Considering the complexity of the heterogeneous network as a cross-network with multi-user and multi-service, it is necessary to apply the delay tolerance network technology, cooperative technology, TD-LTE and software definition network technology into the network architecture design. The vision is exploiting DTN technology based ship-borne Internet, and the space-sea cooperative DTN data transmission scheduling mechanism; exploring the underwater acoustic/optical communication network switching scheduling mechanism; and then software definition heterogeneous network implementation is proposed, especially its optimal target network selection scheme. The project is meant as a petri dish to provide valuable theoretical guidance and technical support of planning and performance evaluation for future marine hierarchical-heterogeneous network.