Transmission Characteristic Analysis for UWB Body Area Communications

Abstract

With the rapid progress of electronic and information technology, an expectation for the realization of body area network (BAN) by means of ultra wide band (UWB) techniques has risen. The objective of this study is to analyze the transmission characteristics by using a high-precision human body model in order to eliminate the influence of antenna structures on channel modeling. A frequency-dependent finite difference time domain ((FD) 2 TD) method and a Matlab-based curve-fitting tool are employed for the modeling of channel characteristics. Based on the numerical results, the path loss and power delay profile are derived statistically. Keywords-Ultra wide band (UWB), transmission channel, frequency-dependent finite difference time domain ((FD) 2 TD) method, path loss, power delay profile

Human Body Model for Channel Characterization Based on Ray-Tracing

“…As shown in Figure 9(a), the measurement setup [23,24] in this section was similar to the section of channel characteristic around the waist. e transmitter was located at the left chest, and the receiving point was closing to the left ear.…”

Body Area Network. A perspective to the future, from research

“…Generalmente el modelo del cuerpo humano corresponde a un conjunto de cilindros dieléctricos que representan el torso, las extremidades y la cabeza. Autores como [25], [16], [43] realizan aproximaciones de tipo analítico del cuerpo humano, que generalmente actúa como un material dieléctrico.…”

“…Los modelos de canal para redes de área corporal han sido explorados con anterioridad, ( [6], [1], [8], [11], [16], [20], [22], [23], [29], [33], [43], [50]) entre otros. Sin embargo hay algunos asuntos sin resolver dentro de los modelos de canal que requieren una solución y se resumen en los siguientes puntos:…”

“…En las redes de área personal se destaca el reciente interés por las redes de área corporal, las redes de comunicaciones que se encuentran dentro, cerca y alrededor de una persona. Allí podemos hallar algunas tecnologías ya existentes, adaptables perfectamente a estos requerimientos, como lo son Bluetooth, ZigBee, millimeter-wave y Ultra Wide Band [1], [2], [24], [29], [43].…”