随机分布分子纳米节点的接收信号强度
Received Signal Strength for Randomly Distributed Molecular Nanonodes
摘要：
我们认为纳米节点随机分布在一个圆形区域，并表征接收到的信号强度时，一对这些节点采用分子通信。研究了两种通信方法，即自由扩散和漂移扩散。由于节点是随机分布的，它们之间的距离可以表示为随机变量，这导致接收信号强度的随机过程表示。我们推导出这两种分子通信方法的概率密度函数。特别是对于自由扩散的情况下，我们还推导出累积分布函数，它可以用来推导传输成功概率。所提出的工作构成了第一步的信号噪声比的表征在所考虑的设置为一些分子通信方法。
英文摘要：
We consider nanonodes randomly distributed in a circular area and characterize the received signal strength when a pair of these nodes employ molecular communication. Two communication methods are investigated, namely free diffusion and diffusion with drift. Since the nodes are randomly distributed, the distance between them can be represented as a random variable, which results in a stochastic process representation of the received signal strength. We derive the probability density function of this process for both molecular communication methods. Specifically for the case of free diffusion we also derive the cumulative distribution function, which can be used to derive transmission success probabilities. The presented work constitutes a first step towards the characterization of the signal to noise ratio in the considered setting for a number of molecular communication methods.
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