项目名称: 身体域条件约束统一衰落模型研究
项目编号: No.61301175
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 无线电电子学、电信技术
项目作者: 杨晓东
作者单位: 西安电子科技大学
项目金额: 25万元
中文摘要: 稳健、可靠的信号衰落模型是高质量身体域无线通信的重要支撑,在身体域中,诸多因素如个体特异性、天线增益、工作频率等都对该区域的信号衰落产生影响。已发表文献和我们以往的研究工作表明,各个因素对身体域衰落模型影响的规律和机制仍不完全明晰;同时,某几个因素共同作用于该衰落模型的方式和机理仍有待进一步的探索。针对以上问题,本课题拟研究场等效方法在身体表面的应用,在此基础上结合频域测量技术,针对身体域内有限样本的事实,重新表征衰落模型的概率密度,并最终通过决策树的组合建立身体域信号衰落的统一模型。以上研究拟解决当前身体域衰落模型较难推广的问题,为准确预测身体域内的无线信号衰减奠定基础。
中文关键词: 可穿戴设备;无线体域网;决策树模型;天线设计;接收信号强度
英文摘要: Reliable fading model is an important support to the high quality wireless communication for body area. In body area,many factors produce an effect to the fading model.Published literature and our previous research indicate that the effects and mechanism of these factors on body area fading model are still unclear,meanwhile,it is important to know how these factors act cooperatively on the fading model.At these reasons,this subject will study the field equivalence method and its application in human body surface,then,the frequency domain measurement technoque can be applied,finally,based on the new probability density characterization,a unified fading model will be established by taking random decision tree approach.The research will generalize the fading model for body area, and hence would lay the foundation for accurate prediction of wireless signal fading in body area.
英文关键词: Wearable devices;wireless body area networks;decision tree model;antenna design;received signal strength