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中文摘要：
通过构建、求解MAC层、物理层、网络层跨层优化模型的方式,对超宽带无线传感器网络数据传输问题进行了初步研究。仿真实验结果表明,以构建、求解优化模型的方式解决无线传感器网络跨层设计问题是切实可行的,物理层信号功率控制、网络层路由对网络整体性能有着至关重要的影响。为超宽带无线传感器网络实际应用提供了必要的理论及实验依据,同时也为解决大规模超宽带传感器网络数据传输问题提供了解决思路。
英文摘要：
The data transmission of UWB-based wireless sensor networks is studied through building and resolving cross-layer optimization model with joint consideration of MAC layer, PHY layer and network layer. Simulation results show it is feasible and effective to deal the cross-layer problem of wireless sensor networks by building and resolving optimization model, and indicate signal power control of PHY layer has important influence on the performance ofwireless sensor networks. Research provides theoretical and experimental foundation for practical implement of UWB wireless sensor networks and gives fessible approach to the address the data traffic issues for large-scale wireless sensor networks.
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