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arXiv 1209.2688cs.ITmath.ITq-bio.QM
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两个细菌种群之间的分子通讯

Molecular Communication Between Two Populations of Bacteria

Arash Einolghozati, Mohsen Sardari, Faramarz Fekr

摘要:

分子通讯是一个不断扩展的研究领域。生物学的最新进展鼓励使用基因工程细菌作为分子通讯的主要成分。这刺激了一个新的研究方向,试图从信息论的角度研究细菌之间的分子通讯。由于细菌个体行为的高度随机性,两种细菌之间的可靠通信几乎是不可能的。因此,我们最近提出,在一个集群中的细菌种群被认为是一个节点,能够分子的传输和接收。这个命题使我们能够从许多不可靠的细菌中形成一个可靠的节点。节点内的细菌感知环境并做出相应的反应。在本文中,我们研究了两个节点之间的通信,一个作为发送器,另一个作为接收器。我们考虑的情况下,其中的信息被编码的分子浓度的发射机。由发射器节点中的细菌产生的分子通过扩散过程在环境中传播。然后,接收节点中的细菌感测到它们的浓度,将解码信息。通信中的随机性是由发射器处的分子产生中的误差和接收器处的分子接收引起的。我们研究了在这样的设置与每个节点的细菌数量的信息传送率的理论极限。最后,我们考虑了M进制调制方案,并研究了可实现的速率和它们的错误概率。

英文摘要:

Molecular communication is an expanding body of research. Recent advances in biology have encouraged using genetically engineered bacteria as the main component in the molecular communication. This has stimulated a new line of research that attempts to study molecular communication among bacteria from an information-theoretic point of view. Due to high randomness in the individual behavior of the bacterium, reliable communication between two bacteria is almost impossible. Therefore, we recently proposed that a population of bacteria in a cluster is considered as a node capable of molecular transmission and reception. This proposition enables us to form a reliable node out of many unreliable bacteria. The bacteria inside a node sense the environment and respond accordingly. In this paper, we study the communication between two nodes, one acting as the transmitter and the other as the receiver. We consider the case in which the information is encoded in the concentration of molecules by the transmitter. The molecules produced by the bacteria in the transmitter node propagate in the environment via the diffusion process. Then, their concentration sensed by the bacteria in the receiver node would decode the information. The randomness in the communication is caused by both the error in the molecular production at the transmitter and the reception of molecules at the receiver. We study the theoretical limits of the information transfer rate in such a setup versus the number of bacteria per node. Finally, we consider M-ary modulation schemes and study the achievable rates and their error probabilities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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