通过在传播通道中放置减速器来减少分子通信中的色散

IF 2.4 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Molecular, Biological, and Multi-Scale Communications Pub Date : 2023-07-19 DOI:10.1109/TMBMC.2023.3296828
Angelika S. Thalmayer;Alisa Ladebeck;Samuel Zeising;Georg Fischer
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引用次数: 0

摘要

在分子通信中,注入管道流中的磁性纳米颗粒被用作信息载体。由于层流状态下速度分布的抛物线形状,一个粒子的速度取决于其在管中的径向位置。这导致粒子脉冲在传播时间上的不希望的扩展。后续脉冲的潜在重叠会引起符号间干扰。只有很少的现有技术的研究直接降低了传播通道内的速度色散。据作者所知,这是第一篇数值研究非湍流状态下直接放置在通道中的不同被动障碍物的论文,以解决分散效应。这些障碍物起到减速器的作用,因为它们使最快的粒子减速,同时使较慢的粒子加速。结果表明,被动减速器可以减少分子通信中的速度色散,从而保证在减速器后面不久,但也在一定距离后,脉冲更加打包。与不同的减速器相比,椭圆形减速器表现出最好的效果,因为它颠倒了速度剖面。
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Reducing Dispersion in Molecular Communications by Placing Decelerators in the Propagation Channel
In molecular communications, magnetic nanoparticles, which are injected into a pipe flow, are used as information carriers. Due to the parabolic shape of the velocity profile in laminar flow regimes, the speed of one particle depends on its radial position in the tube. This results in an unwanted extension of a particle pulse over the propagation time. Potential overlapping of subsequent pulses induces intersymbol interference. Only few research of the current state of the art reduces velocity dispersion directly within the propagation channel. To the best of the authors’ knowledge, this is the first paper that numerically investigates different passive obstacles which are placed directly in the channel for non-turbulent flow regimes to address the dispersion effects. These obstacles serve as decelerators, as they decelerate the fastest particles while at the same time accelerating slower particles. The results reveal that a passive decelerator can reduce the velocity dispersion in molecular communications and, thus, guarantee a more packetized pulse shortly behind the decelerator but also after some distance. Compared with different decelerators, an elliptical-shaped one showed the best results, as it inverts the velocity profile.
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来源期刊
CiteScore
3.90
自引率
13.60%
发文量
23
期刊介绍: As a result of recent advances in MEMS/NEMS and systems biology, as well as the emergence of synthetic bacteria and lab/process-on-a-chip techniques, it is now possible to design chemical “circuits”, custom organisms, micro/nanoscale swarms of devices, and a host of other new systems. This success opens up a new frontier for interdisciplinary communications techniques using chemistry, biology, and other principles that have not been considered in the communications literature. The IEEE Transactions on Molecular, Biological, and Multi-Scale Communications (T-MBMSC) is devoted to the principles, design, and analysis of communication systems that use physics beyond classical electromagnetism. This includes molecular, quantum, and other physical, chemical and biological techniques; as well as new communication techniques at small scales or across multiple scales (e.g., nano to micro to macro; note that strictly nanoscale systems, 1-100 nm, are outside the scope of this journal). Original research articles on one or more of the following topics are within scope: mathematical modeling, information/communication and network theoretic analysis, standardization and industrial applications, and analytical or experimental studies on communication processes or networks in biology. Contributions on related topics may also be considered for publication. Contributions from researchers outside the IEEE’s typical audience are encouraged.
期刊最新文献
Table of Contents IEEE Transactions on Molecular, Biological, and Multi-Scale Communications Publication Information Guest Editorial Introduction to the Special Feature on the 8th Workshop on Molecular Communications Guest Editorial Special Feature on Seeing Through the Crowd: Molecular Communication in Crowded and Multi-Cellular Environments IEEE Communications Society Information
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