On ultra wideband channel modeling for in-body communications
On ultra wideband channel modeling for in-body communications
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DOI：
10.1109/iswpc.2010.5483804
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发表时间：
2010-05
期刊：
影响因子：
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通讯作者：
A. Khaleghi;R. Chávez-Santiago;Xuedong Liang;I. Balasingham;Victor C. M. Leung;T. Ramstad
中科院分区：
文献类型：
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作者：
A. Khaleghi;R. Chávez-Santiago;Xuedong Liang;I. Balasingham;Victor C. M. Leung;T. Ramstad
创新的医疗应用，如用于健康监测的植入式无线传感器，自动药物输送等，可以通过使用超宽带（UWB）无线电技术来实现。然而，对于在人体内操作的无线系统的有效设计，无线电通信信道模型是必不可少的。虽然大量的研究工作，最近一直致力于身体上的UWB无线电通信信道的特性，只有少数作品描述的无线电传播人体内已被报道。为了解决这个问题，UWB信号通过人体组织中的0.1-1 GHz和1-6 GHz的频带的传播的计算研究，本文提出。这是基于使用具有频率依赖性组织材料特性的人体的异质解剖模型的数值模拟。随后，一个统计信道模型，介绍了在1-6 GHz频带的UWB体内通信。该模型提供了人体胸部内的两个典型深度。本文的工作对超宽带医用植入体通信系统的实际设计具有一定的指导意义。
Innovative medical applications such as implant wireless sensors for health monitoring, automatic drug deliverance, etc. can be realized with the use of ultra wideband (UWB) radio technology. Nevertheless, for efficient design of wireless systems operating inside the human body a radio communication channel model is essential. Although a lot of research effort has recently been devoted to the characterization of the on-body UWB radio communication channel, just a few works describing the radio propagation inside the human body have been reported. To address this problem, a computational study of the propagation of UWB signals through human tissues in the 0.1-1 GHz and 1-6 GHz frequency bands is presented in this paper. This is based on numerical simulations using a heterogeneous anatomical model of the human body with frequency dependent tissue material properties. Subsequently, a statistical channel model is introduced for UWB in-body communications in the 1-6 GHz frequency band. The model is provided for two typical depths inside the human chest. This work contributes to the practical design of UWB medical implant communication systems.