面向具有混杂配体受体的分子通信的亲和力划分复用技术
Affinity-Division Multiplexing for Molecular Communications with Promiscuous Ligand Receptors
AI总结：
针对分子通信传输速率低的问题，提出基于配体-受体结合亲和力差异的复用方案，仅需单种混杂受体，推导了平均误比特率表达式并分析各参数对系统性能的影响。
摘要：
分子通信（Molecular Communications, MC）的核心挑战之一是数据传输速率低，这一问题可通过信道复用技术解决。实现MC信道复用的一种思路是利用不同分子类型在受体结合特性（如亲和力、动力学结合/解离速率）上的差异。本研究提出了一种实用的MC复用方案，该方案基于配体-受体结合亲和力的差异。该方法仅要求接收端存在单一类型的混杂受体，且该受体能够与多种配体类型发生相互作用。我们通过解析推导得出所有复用MC信道上的平均误比特率（Bit Error Probability, BEP），该误比特率是配体间受体亲和力相似度、受体数量、复用信道数量以及编码比特1与比特0的浓度比的函数。我们还探究了各设计参数对复用MC系统性能的影响。
英文摘要：
A key challenge in Molecular Communications (MC) is low data transmission rates, which can be addressed by channel multiplexing techniques. One way to achieve channel multiplexing in MC is to leverage the diversity of different molecule types with respect to their receptor binding characteristics, such as affinity and kinetic binding/unbinding rates. In this study, we propose a practical multiplexing scheme for MC, which is based on the diversity of ligand-receptor binding affinities. This method requires only a single type of promiscuous receptor on the receiver side, capable of interacting with multiple ligand types. We analytically derive the mean Bit Error Probability (BEP) over all multiplexed MC channels as a function of similarity among ligands in terms of their receptor affinities, the number of receptors, the number of multiplexed channels, and the ratio of concentrations encoding bit-1 and bit-0. We investigate the impact of each design parameter on the performance of multiplexed MC system.
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