与高能耗、高成本Wi-Fi技术相比，ZigBee技术具有低能耗、低成本等优点，这使其成为最具研发前景的Wi-Fi网络协同技术之一。然而，目前国内外多接口协同相关研究往往关注集中式无线局域网，缺乏对分布式无线自组织网的研究。为此，本课题基于异构ZigBee与Wi-Fi间的互操作性，开展对异构感知ZigBee协同技术的研究，以解决无线自组织网跨层寿命优化问题。首先，拟建立ZigBee与Wi-Fi层间协作节能优化体系。并以此为依托，自下而上，先针对MAC层构建粒度可调的ZigBee协同Wi-Fi工作周期调度，为节点寿命调控提供基础。随后，针对网络层先后开展对ZigBee协同节点寿命均衡机制的研究，从局部均衡数据传输节点寿命；以及ZigBee协同路由机制的研究，以实现全网节点寿命均衡。本课题将通过仿真与实测相结合的方式进行验证，预计将对以多接口协同为主的泛在无线通信系统的应用起到一定推动作用。

Compared with high-power and high-cost Wi-Fi, ZigBee has the advantages, such as low power, low cost, etc., making it one of the most promising wireless collaboration technologies for Wi-Fi based networks. However, current research on multi-interface collaboration mainly focuses on centralized wireless local area networks, and neglects decentralized wireless ad hoc networks. Therefore, taking advantage of the interoperability between heterogeneous ZigBee and Wi-Fi, we propose to conduct extensive research on heterogeneity-aware ZigBee collaboration, towards solving cross-layer network lifetime optimization problem for wireless ad hoc networks. First, we build ZigBee and Wi-Fi cross-layer collaboration architecture for energy saving. Based on that, from bottom to top, we first design granularity-tunable ZigBee-collaborated duty-cycle scheduling scheme over MAC layer, serving as foundation for nodal lifetime adjustment. Next, over network layer, we conduct research on ZigBee-collaborated nodal lifetime balancing algorithm in order to locally balance lifetime of the nodes involved in data transmission, and then we study ZigBee-collaborated routing mechanism towards achieving global nodal lifetime balance. Theories and designs of this project will be verified via combination of extensive simulation and physical experiments. We hope this project could promote the application and development of multi-interface collaboration technique in ubiquitous wireless networking systems.