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Analysis of ARQ. protocols for bacterial quorum communications

机译：ARQ分析。细菌群体通讯协议

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Quorum sensing (QS) is used to describe the communication between bacterial cells, whereby a coordinated population response is controlled through the synthesis, accumulation and subsequent sensing of specific diffusible chemical signals called autoinducers, enabling a cluster of bacteria to regulate gene expression and behaviour collectively and synchronously, and assess their own population. As a promising method of molecular communication, bacterial populations can be programmed as bio-transceivers to establish information transmission using molecules. In this work, to investigate the key features for molecular communication, a bacterial QS system is introduced, which contains two clusters of bacteria, specifically Vibrio fischeri, as the transmitter node and receiver node, and the diffusive channel. The transmitted information is represented by the concentration of autoinducers with on-off keying (OOK) modulation. In addition, to achieve better reliability, transmission efficiency and channel throughput performance, different Automatic Repeat reQuest (ARQ) protocols are taken into consideration. This configuration is investigated via simulation and the consequent results discussed. The performance of the system is evaluated in terms of transmission time, efficiency, bit error rate (BER) and channel throughput. Results show that Selective-Repeat (SR-ARQ) performs better than Go-Back-N (GBN-ARQ), while the performance of Stop-N-Wait (SW-ARQ) varies for different channel conditions, which is quite different from the performance of ARQ schemes in traditional networking areas.
机译：群体感应（QS）用于描述细菌细胞之间的通讯，从而通过合成，积累和随后感应称为自动诱导剂的特定扩散化学信号来控制协调的种群反应，从而使一簇细菌共同调节基因表达和行为。并同步评估自己的人口。作为一种有前途的分子通讯方法，细菌种群可以被编程为生物收发器，以利用分子建立信息传递。在这项工作中，为了研究分子通讯的关键特征，引入了一个细菌QS系统，该系统包含两个细菌簇，特别是费氏弧菌，作为发射器节点和接收器节点，以及扩散通道。传输的信息由具有开关键控（OOK）调制的自动感应器的集中度表示。另外，为了获得更好的可靠性，传输效率和信道吞吐性能，考虑了不同的自动重传请求（ARQ）协议。通过仿真研究了这种配置，并讨论了结果。根据传输时间，效率，误码率（BER）和信道吞吐量评估系统的性能。结果表明，选择性重复（SR-ARQ）的性能要优于Go-Back-N（GBN-ARQ），而Stop-N-Wait（SW-ARQ）的性能因不同的信道条件而异，这与ARQ方案在传统网络领域的性能。

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