项目名称: 面向人体生物安全的无线体域网发射功率控制技术研究
项目编号: No.61303253
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 自动化技术、计算机技术
项目作者: 吕超
作者单位: 中国科学院微电子研究所
项目金额: 23万元
中文摘要: 发射功率控制是体域网降低对人体辐射、保障人体生物安全的重要措施。由肢体移动对无线链路引起的动态变化,是体域网链路不稳定的主要因素之一,对传统的功率控制方法在体域网中应用提出了新的挑战。本项目将建立包含节点相对位置、肢体移动信息等体域网应用特征的近人体无线信道传输模型,研究节点按需发射功率控制算法;通过体域网内各体征检测节点与网关节点的相对位置信息,研究功率补偿方法,消除隐终端问题,减小链路冲突,提高网络可靠性;采用数值计算与实验测试结合的方式,对功率控制算法进行分析与评测,验证算法和协议的有效性。体域网功率控制算法的研究,将对体域网生物安全性保障、低功耗、高可靠传输等应用需求提供重要的技术支撑。
中文关键词: 无线体域网;功率控制;低复杂度;低功耗;生物安全
英文摘要: Transmit power control can decrease the radialization level of human body in body area networks. The shadowing effect by the movement of limbs is one of the key factors to make the wireless link unstable, which brings new challenges to some traditional transmit power control algorithm to be used in body area networks. In this project, a propagation model according to relative locations and limb movement will be established, based on which a transmit power control algorithm is presented.According to the relative locations among the sensing nodes and hub node, a transmit power compensation method will be given to fit the movement requirement of body area networks. Based on numerical calculation and experiment, power control algorithm will be analyzed and evaluated to verify its availability. This research will provide important technical support to the application requirement of body area networks, such as biology security, low power design, and high reliability.
英文关键词: Body area networks;Power control;Low complexity;Low power;Biological safety