在分子通信中用有限数量的酶有效减轻符号间干扰
Effective inter-symbol interference mitigation with a limited amount of enzymes in molecular communications
摘要：
在分子扩散通信（MCvD）中，码间干扰（ISI）是一个严重的问题，它会降低数据率和链路可靠性。ISI主要是由于信使分子的缓慢和高度随机传播而发生的，这导致来自先前符号的发射分子干扰来自当前符号的分子。减轻ISI的有效方法是使用酶降解不需要的分子。先前关于酶缓解ISI的工作假设了无限数量的酶随机分布在分子通道周围。采用不同的方法，本文假设MCvD通道具有有限数量的酶。本文解决的主要问题是如何将这些酶部署在有效的结构中，以便最大限度地减轻ISI。为了找到一个有效的MCvD通道环境，本研究考虑优化的形状的发射机节点，部署位置和结构，酶部署区域的大小，和酶的半衰期。并分析了最佳酶区大小对距离和半衰期的依赖性。
英文摘要：
In molecular communication via diffusion (MCvD), the inter-symbol interference (ISI) is a well known severe problem that deteriorates both data rates and link reliability. ISI mainly occurs due to the slow and highly random propagation of the messenger molecules, which causes the emitted molecules from the previous symbols to interfere with molecules from the current symbol. An effective way to mitigate the ISI is using enzymes to degrade undesired molecules. Prior work on ISI mitigation by enzymes has assumed an infinite amount of enzymes randomly distributed around the molecular channel. Taking a different approach, this paper assumes an MCvD channel with a limited amount of enzymes. The main question this paper addresses is how to deploy these enzymes in an effective structure so that ISI mitigation is maximized. To find an effective MCvD channel environment, this study considers optimization of the shape of the transmitter node, the deployment location and structure, the size of the enzyme deployed area, and the half-lives of the enzymes. It also analyzes the dependence of the optimum size of the enzyme area on the distance and half-life.
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