Shadowing-Fading BER Characterization of a BAN Diversity Antenna Based on Statistical Measurements of the Human Walking Motion
Shadowing-Fading BER Characterization of a BAN Diversity Antenna Based on Statistical Measurements of the Human Walking Motion
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DOI：
10.1587/transcom.e96.b.2530
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发表时间：
2013-10-01
影响因子：
0.7
通讯作者：
Ogawa, Koichi
中科院分区：
文献类型：
--
作者：
Honda, Kazuhiro;Li, Kun;Ogawa, Koichi
本文提出了一种基于人体步行运动的统计测量的体域网（BAN）分集天线的阴影分析。首先，手臂摆动运动的动态特性进行了测量，使用人类受试者，然后进行统计分析，使用测得的数据提取有用的信息进行分析的BAN分集天线。其次，基于摇摆运动的统计数据，给出了BAN天线阴影效应的分析结果。典型摆臂模型与实际摆臂模型之间的差异显著影响了BAN天线的误码率（BER）特性。为了消除臂运动引起的阴影，使用了BAN分集天线。特别强调的是放在评估的分集天线的空间分离，以达到减少的信号-噪声比（SNR），需要实现一个特定的BER性能，考虑到阴影和多径衰落的组合结果，独特的BAN天线系统。我们确定，当分集天线以对称配置安装在左腰部时，需要大于80度的天线角度间隔以减少遮蔽效应。此外，当分集天线安装在非对称结构中时，需要120度的天线角度间隔。
This paper presents the shadowing analysis of a body area network (BAN) diversity antenna based on the statistical measurements of the human walking motion. First, the dynamic characteristics of the arm-swing motion were measured using human subjects, and a statistical analysis was then carried out using the measured data to extract useful information for the analysis of a BAN diversity antenna. Second, the analytical results of the shadowing effects of the BAN antenna were shown based on the statistical data of the swing motion. The difference between the typical and the realistic arm-swinging models significantly affected the bit error rate (BER) characteristic of the BAN antenna. To eliminate the shadowing caused by the movement of the arms, a BAN diversity antenna was used. Particular emphasis was placed on the evaluation of the spatial separation of the diversity antennas to attain reduction of the signal-to-noise ratio (SNR) required to achieve a specific BER performance, considering the combined outcome of shadowing and multipath fading unique to BAN antenna systems. We determined that an antenna angle separation of greater than 80 degrees is required to reduce the shadowing effects when the diversity antenna is mounted at the left waist in a symmetrical configuration. Further, an antenna angle separation of 120 degrees is required when the diversity antenna is mounted in an asymmetric configuration.