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首页> 外文期刊>International journal of communication systems >Channel capacity analysis of a diffusion-based molecular communication system with ligand receptors
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Channel capacity analysis of a diffusion-based molecular communication system with ligand receptors

机译：具有配体受体的基于扩散的分子通讯系统的通道容量分析

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Diffusion-based communication is one of the most dominating forms in the micrometer and nanoscale communications. Generally, information is coded in molecules that are released by a transmitter nanomachine, propagated via a diffusion-based channel, and then received by a receiving nanomachine (called receiver). The receiver considered in this paper is equipped with multiple ligand receptors. The molecular communication system in this paper is single hop and SISO. Namely, there is only a channel connecting a pair of transmitter and receiver. While most literature considers either the channel or the receptors, this paper proposes a channel model that takes into account both the diffusion-based channel and the ligand-based receiver. The channel capacity under such model is analyzed, which studies the impact of different parameters at both channel and the receiver on the performance of the molecular communication system. We establish a digital channel model based on the on-off keying and time slot scheme. A capacity expression is derived with consideration of the effects of the channel memory and ligand-receptor binding mechanisms. The numerical results show that the overall channel capacity is restricted by the physical parameters of diffusion channel and ligand receptors. Copyright (c) 2014 John Wiley & Sons, Ltd.
机译：基于扩散的通信是微米和纳米级通信中最主要的形式之一。通常，信息以分子形式编码，这些分子由发射器纳米机释放，通过基于扩散的通道传播，然后由接收器纳米机（称为接收器）接收。本文考虑的受体配备了多个配体受体。本文的分子通信系统是单跳和SISO。即，仅存在连接一对发送器和接收器的信道。虽然大多数文献都考虑了通道或受体，但本文提出了一种通道模型，该模型同时考虑了基于扩散的通道和基于配体的受体。分析了这种模型下的信道容量，研究了信道和接收器上不同参数对分子通信系统性能的影响。我们基于开关键控和时隙方案建立了一个数字信道模型。考虑到通道记忆和配体-受体结合机制的影响，得出容量表达。数值结果表明，总通道容量受扩散通道和配体受体的物理参数限制。版权所有（c）2014 John Wiley＆Sons，Ltd.

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