物联网是互联网技术延伸和提升后的一种全新表现形式，(其中)基于跨层设计的QoS优化算法与网络安全机制是实现物联网大规模部署的关键技术。本研究以构建可控、可管、可信的物联网为研究目标，在符合工程假设条件下，结合跨层优化设计思想对物联网资源优化调度及网络安全相关机制展开深入研究。具体针对物联网技术中继系统跨层资源优化调度机制及算法；物联网中相关状态信息跨层预测、发现和反馈机制；物联网安全和跨层动态交互的层次体系架构及相关机制等三个核心科学问题。针对这三个科学问题，本研究拟在物联网网络QoS层次模型和网络安全构架基础上，对物联网中的协同中继跨层资源优化体系模型、理论框架、资源优化计算方法；基于节能传输优化的资源状态信息预测、发现和反馈机制；以及隐私保护技术和统一支撑体系安全模型等方面提出具体解决方案。本研究将为物联网技术的发展提供重要的参考依据，为物联网的大规模部署奠定坚实的理论基础。

Internet of Things (IoT) is considered to be the extension and upgrade of the internet. Both QoS algorithms based on cross-layer design and network security mechanism are supposed to be the key technologies in the deployment of IoT on a big scale. Aim at constructing IoT with controllability, manageability and security, our research focus on the optimal resource scheduling and network security mechanisms for IoT combined with cross-layer optimization design technology in accordance with the suitable engineering assumptions. There are three basic scientific questions in our study, the cross-layer resource optimization scheduling mechanisms and algorithms in relay system in IoT, the related state information inter-layer prediction, discovery, and feedback mechanisms and the security and cross-layer hierarchy of the dynamic interaction architecture and related mechanisms for IoT in detail. For these three problems, We will give specific solutions on the collaborative relay cross-layer resource optimization system model, the theoretical framework and resource optimization scheduling algorithm in IoT, the optimized the resource status information to predict, discover and feedback mechanisms based on energy transfer technology and the privacy protection and the unified support system security model in IoT in the basic of Network QoS hierarchical model in IoT and Network security architecture。Our research will provide essential reference to the development of IoT technology and set up a solid theory foundation for the deployment of IoT in-large scale.