单跳移动的分子通信系统的信道容量和比特错误率分析  

Channel Capacity and Bit Error Probability Analysis for Single-hop Mobile Molecular Communication System

作　　者：程珍[1] 章益铭 涂宇淳 CHENG Zhen;ZHANG Yi-ming;TU Yu-chun(College of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]浙江工业大学计算机科学与技术学院,杭州310023

出　　处：《小型微型计算机系统》2020年第5期1036-1040,共5页Journal of Chinese Computer Systems

基　　金：浙江省自然科学基金项目(LY19F020029)资助.

摘　　要：考虑单跳移动的分子通信系统,首先,对纳米机器的运动方式在一维空间进行建模,并分析了该系统模型的信道特点;其次,考虑了多时隙码间干扰,采用加权和检测器对接收方纳米机器进行建模,用泊松分布逼近二项分布得到接收方纳米机器在当前时隙收到的分子总数,得到了该系统信道容量和比特错误率的计算公式;最后,通过Matlab数值仿真验证了不同的参数对单跳移动的分子通信系统的信道容量及比特错误率的影响.可通过设置这些参数的值,从而达到提高该系统信道容量和降低比特错误率的目的.Considering the single-hop mobile molecular communication system,first,we use the Gaussian distribution to model the motion of the nanomachines,nd analyze the communication characteristics of the system model.Then,considering the multi-slot intersymbol interference,and using the weighted sum detector to model the receiver nanomachine,we use the Poisson distribution to approximate the binomial distribution to obtain the total number of molecules received by the receiver nanomachine in the current time slot,thereby the computation formulas of the channel capacity and bit error probability of the system are derived.Finally,numerical simulations by using Matlab verify the impacts of different parameters on the channel capacity and bit error probability of the system.The setting of the parameters can be used to improve the capacity and reduce the bit error probability.

关 键 词：分子通信 移动的 码间干扰 信道容量 比特错误率 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]