作者: Radoslaw Piesiewicz , Jaouhar Jemai , Martin Koch , Thomas Kurner
DOI: 10.1117/12.588555
关键词:
摘要: Short range wireless communication systems are expanding at rapid rate, finding application in offices, congested urban areas and homes. Development of local area networks is accompanied by a steady increase the demand for ever higher data rates. This turn entails necessity to develop which operate frequencies. Currently WLAN works few GHz, while operating several ten GHz appear already feasible. It can be expected that short-range will soon push towards THz frequency handle high-density information support wider bandwidth communications developed years time. Since radiation strongly absorbed atmosphere, working distances may short individual pico-cells cover only single rooms or most one building. For an indoor system practical importance it must robust against shadowing. Recently, flexible all-plastic mirrors, supporting specular reflections have been demonstrated. They cheap easy produce used as selective wall-paper enhance reflectivity walls hence facilitate non-line-of-sight cell. this case spatial temporal characteristics propagation channel room with randomly placed objects moving people derived ray-tracing methodology Monte Carlo simulations. Our simulations show high-gain antennas needed realization environments. Furthermore, indirect transmission paths between transmitter receiver, supported dielectric mirrors make much more