UWB on-body radio propagation and system modelling for wireless body-centric networks
UWB on-body radio propagation and system modelling for wireless body-centric networks
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DOI：
10.1049/ip-com:20050046
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发表时间：
2006-02-01
期刊：
影响因子：
--
通讯作者：
Hall, PS
中科院分区：
文献类型：
--
作者：
Alomainy, A;Hao, Y;Hall, PS
考虑到移动通信中以用户为中心的概念的趋势，身体区域网络在无线个人区域社区中受到越来越多的关注。研究人员和设计者一直在研究无线电传播特性和建模，因为它在开发和设计有效和可靠的无线电系统方面具有重要意义。本文介绍了超宽带(UWB)在体无线电传播的实验研究。从测量参数导出了大尺度和时延分析的信道模型。文中还展示了不同天线类型对油路特性的影响。结果和分析强调了身体姿势和位置的变化以及天线方向对通信渠道造成的影响。测量数据也被用来预测潜在的UWB无线系统的性能及其在以身体为中心的网络中的应用。结果表明，超宽带体心网络的二相调制系统比脉冲位置调制系统性能更好。研究还得出结论，对于不同的车载链路使用混合天线类型将提供更好的系统性能。
Given the trend towards a user-centric concept in mobile communications, body area networks have received increasing attention within the wireless personal area community. Researchers and designers have been investigating radio propagation characterisation and modelling owing to its importance in developing and designing efficient and reliable radio systems. The paper presents an experimental investigation of ultra-wideband (UWB) on-body radio propagation. Channel models with respect to large scale and delay analysis have been derived from measured parameters. Effects of different antenna types oil channel behaviour are also demonstrated. Results and analyses highlight the consequences of changes in body postures and positions in addition to antenna orientations oil the communication channels. Measurement data are also used in predicting the performance of potential UWB wireless systems and their applications in body-centric networks. It is indicated that bi-phase modulation for UWB body-centric networks performs better than pulse position modulation systems. The study also concludes that the use of hybrid antenna types for different on-body links will provide better system performance.