基于扩散的分子通信模型的信道容量分析

doi:10.16182/j.issn1004731x.joss.201806005

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (6): 2036-2043.doi: 10.16182/j.issn1004731x.joss.201806005

基于扩散的分子通信模型的信道容量分析

程珍, 林飞, 雷艳静, 赵慧婷

浙江工业大学计算机科学与技术学院,浙江杭州 310023

收稿日期:2016-07-26 修回日期:2016-10-10 出版日期:2018-06-08 发布日期:2018-06-14
作者简介:程珍(1981-),女,湖北黄冈,博士,副教授,研究方向为分子通信与纳米网络;林飞(1992-),男,浙江衢州,硕士生,研究方向为分子通信与纳米网络。
基金资助:
国家自然科学基金(61472367),浙江省自然科学基金(LY15F020029)

Channel Capacity Analysis of Diffusion-based Molecular Communication Model

Cheng Zhen, Lin Fei, Lei Yanjing, Zhao Huiting

School of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China

Received:2016-07-26 Revised:2016-10-10 Online:2018-06-08 Published:2018-06-14

摘要/Abstract

摘要： 目前,学者对基于扩散的分子通信(Diffusion-based Molecular Communication,DBMC)模型的信道容量的研究工作十分有限。在分时隙的点到点通信场景中,考虑前面所有时隙对当前时隙的码间干扰,并通过最小平均错误概率准则求出了接收方纳米机器检测过程中的最优判决阈值,得到了DBMC模型的互信息表达式,从而对该模型的信道容量进行了分析。仿真结果表明,不同的参数设置对该模型的信道容量有重要的影响。相比已有的点到点分子通信模型,DBMC模型使用较少的分子数并能显著提高信道容量。

关键词: 扩散的分子通信, 最优判决阈值, 互信息, 信道容量

Abstract: At present, the research on the channel capacity of diffusion-based molecular communication (DBMC) model is very limited. In the slotted point to point communication scenario, considering all the inter-symbol interferences from all the previous time slots, the optimal decisive threshold is provided by using the criterion of minimum average error probability in the detection process for the receiver nanomachine, and the mutual information expression is derived in DBMC model. Thus channel capacity of this model is analyzed. The simulation results show that the different parameters have important influences on the channel capacity. Compared to the existed point to point molecular communication model, DBMC model can use less number of molecules and significantly improve the channel capacity.

Key words: diffusion-based molecular communication, optimal decision threshold, mutual information, channel capacity

中图分类号:

TP391.9

程珍, 林飞, 雷艳静, 赵慧婷. 基于扩散的分子通信模型的信道容量分析[J]. 系统仿真学报, 2018, 30(6): 2036-2043.

Cheng Zhen, Lin Fei, Lei Yanjing, Zhao Huiting. Channel Capacity Analysis of Diffusion-based Molecular Communication Model[J]. Journal of System Simulation, 2018, 30(6): 2036-2043.

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基于扩散的分子通信模型的信道容量分析

Channel Capacity Analysis of Diffusion-based Molecular Communication Model

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