室内无线传感器网络链路质量特征.pdfVIP

2012年第06期，第45卷 通 信 技 术 Vol.45，No.06,2012 总第 246期 Communications Technology No.246,Totally ·网 络· 室内无线传感器网络链路质量特征研究 ①② 张明远 （①中国科学院 研究生院，北京 100049；②国家无线电监测中心检测中心，北京 100037） 【摘 要】首先分析了室内无线传感网络链路特点及传统链路质量特征描述存在的问题，指出了人类 活动对室内无线传感器网络链路质量的显著影响。其次提出并描述了人体室内运动模型，在此基础上提出 了人体运动条件下室内无线传感器网络有效区域，过渡区域和无效区域的估计方法，给出了上述区域中人 体运动造成的数据接收成功率下降的理论界限。通过构造人体运动条件下干扰实验案例，分析了上述估计 方法的性能。 【关键词】通信与信息系统；无线传感器网络；链路质量；包接收率 【中图分类号】TP939 【文献标识码】A 【文章编号】1002-0802(2012)06-0026-06 Study on Link Quality of Indoor Wireless Sensor Networks under Human-mobility Conditions ZHANG Ming-yuan①② (①Graduate University of Chinese Academy of Sciences, Beijing 100049, China; ②Testing Center of the State Radio Monitoring Center, Beijing 100037, China) 【Abstract】Based on analyzing the characteristics of indoor wireless sensor networks and the traditional link measurement problems, this paper first points out that human activities have significant impacts on the link quality of the indoor wireless sensor networks. Then it describes the proposed indoor human-mobility model, and with this model, an estimation method of effective area, transitional area and ineffective area is proposed. The theoretical limits for the decline of data reception success rate caused by the movement of the human body in the above-mentioned areas are also given in this paper. Finally by constructing a test case under the conditions of human-mobility interfe