Molecular Versus Electromagnetic Wave Propagation Loss in Macro-Scale Environments
Molecular Versus Electromagnetic Wave Propagation Loss in Macro-Scale Environments
复制标题
宏观环境中的分子与电磁波传播损耗
DOI：
10.1109/tmbmc.2015.2465517
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Jiang
中科院分区：
文献类型：
--
作者：
Weisi Guo;C. Mias;N. Farsad;Jiang
分子通信作为一种仿生信息载体，在微纳米尺度环境中得到了广泛的研究。在宏观尺度上，它也可以被认为是基于电磁（EM）波的系统的替代方案，特别是在对EM波功率有显著衰减的环境中。本文超越了无界的自由空间传播，检查三个宏观尺度的环境：管道，刀刃，和网格通道。本文给出的近似解析表达式表明，当电磁频率低于管道通道的截止频率，电磁波长远大于网格周期，以及接收器位于障碍物的高衍射损耗区域时，MC比电磁波通信具有优势。
Molecular communications (MC) has been studied as a bio-inspired information carrier for micro-scale and nano-scale environments. On the macro-scale, it can also be considered as an alternative to electromagnetic (EM) wave based systems, especially in environments where there is significant attenuation to EM wave power. This paper goes beyond the unbounded free space propagation to examine three macro-scale environments: the pipe, the knife edge, and the mesh channel. Approximate analytical expressions shown in this paper demonstrate that MC has an advantage over EM wave communications when: 1) the EM frequency is below the cut-off frequency for the pipe channel, 2) the EM wavelength is considerably larger than the mesh period, and 3) when the receiver is in the high diffraction loss region of an obstacle.