论文标题

分析基于扩散的分子通信与具有单个随机信息位的多个发射器

Analysis of Diffusion Based Molecular Communication with Multiple Transmitters having Individual Random Information Bits

论文作者

Sabu, Nithin V., Gupta, Abhishek K.

论文摘要

在本文中,我们提出了一个分析框架,以推导分子通信系统的性能,其中发射机生物纳米光明(TBN)正在与其他TBN的扩散式式传播介质中与完全吸收的球形接收器生物 - 纳米光学(RBN)通信。我们假设每个TBN的发射位是随机的,并且与其他TBN的发射位不同。我们使用标记的Poisson点过程(PPP)及其位置作为PPP的点和传输符号作为标记进行建模。我们考虑符号间干扰(ISI)和共通道干扰(CCI)。 ISI是由先前插槽中传播的分子引起的,而CCI是由于其他TBN发出的分子引起的。我们通过在发射位的分布上取平均值,而不是过去的方法来得出该系统的位误差概率,而不是在先前的发送位和/或假设每个TBN的发射位相同的情况下进行调节。使用数值结果,我们验证分析并提供有关系统的各种设计见解,例如,检测阈值对系统性能的影响。我们还表明了将传输位的随机性准确地纳入分析中的重要性。

In this paper, we present an analytical framework to derive the performance of a molecular communication system where a transmitter bio-nano-machine (TBN) is communicating with a fully-absorbing spherical receiver bio-nano-machine (RBN) in a diffusive propagation medium in the presence of other TBNs. We assume that transmit bits at each TBN is random and different than transmit bits at other TBNs. We model the TBNs using a marked Poisson point process (PPP) with their locations as points of PPP and transmit symbols as marks. We consider both inter-symbol interference (ISI) and co-channel interference (CCI). ISI is caused by molecules transmitted in the previous slots while CCI is due to the molecules emitted from other TBNs. We derive the bit error probability of this system by averaging over the distribution of the transmit bits as opposed to the past approaches consisting of conditioning on previous transmit bits and/or assuming the transmit bits of every TBN are the same. Using numerical results, we validate our analysis and provide various design insights about the system, for example, the impact of detection threshold on the system performance. We also show the importance of accurately incorporating the randomness of transmit bits in the analysis.

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