DTNs中意识控制的等待路由机制  

A waiting routing based on conscious control in DTNs

作　　者：任丽丽 欧阳君 REN Lili;OUYANG Jun(School of Public Foundation,Bengbu Medical College,Bengbu Anhui 233030,China)

机构地区：[1]蚌埠医学院公共基础学院,安徽省蚌埠市233030

出　　处：《阜阳师范大学学报（自然科学版）》2023年第3期77-87,共11页Journal of Fuyang Normal University:Natural Science

基　　金：安徽省高校自然科学重点项目(2022AH051449)。

摘　　要：容迟网络DTNs(Delay Tolerant Networks)缺乏端到端稳定的链路连接,因此该网络中数据包的转发及能量消耗问题被广泛关注。而已有的研究成果大多只关注DTNs中存在一个目的节点的网络性能,忽略了网络中存在多个自私性和利他性目的节点情况。而数据包传输功率的选择也是影响网络性能的一个关键因素。基于此,本文在充分考虑DTN中存在多个目的节点的利他性和自私性的情况下,首先通过微分方程组来模型化数据包传递的过程,接着定义了传输性能和能量消耗之间的权衡表达函数,并且证明了该函数是一个次模函数以及次模函数的NP-hard问题,最后通过实验验证本文所提出的意识控制等待路由机制。结果表明:存在利他性目的节点的网络性能在传递率和权衡方面优于自私性目的节点;意识控制等待路由机制在能量消耗、传递率和折衷方面优于Epidemic、DT和Time-aware路由。Due to the lack of end-to-end stable link connections in DTNs(Delay Tollant Networks),the forwarding and energy consumption of data packets in these networks have received widespread attention.However,most of the existing research results only focus on the network performance of DTNs with one destination node,ignoring the presence of multiple selfish and altruistic destination nodes in the network.The choice of packet transmission power is also a key factor affecting network performance.Based on this,this article fully considers the altruism and selfishness of multiple destination nodes in DTN.Firstly,the process of packet transmission is modeled through a system of differential equations.Then,a trade-off expression function between transmission performance and energy consumption is defined,and it is proved that this function is a submodular function and an NP hard problem of the submodular function.Finally,the awareness control waiting routing mechanism proposed in this article is verified through experiments.The results indicate that the network performance of altruistic destination nodes is superior to that of selfish destination nodes in terms of delivery rate and trade-off.At the same time,the conscious control waiting routing mechanism is superior to Epidemic,DT and Time aware routing in terms of energy consumption,delivery rate,and tradeoff.

关 键 词：DTNs 能量消耗 等待路由 多目的节点 意识控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]