一种多备份的移动边缘路由策略  

A Multi-Copy Forwarding Strategy for Edge Routing in Heterogenous Wireless Networks

作　　者：胡彬[1] 袁甜甜[1] 杨熙雨 HU Bin;YUAN Tian-tian;YANG Xi-yu(Technical College for The Deaf,Tianjin University of Technology,Tianjin 300384,China;School of Cyberspace Security,Beijing University of Posts and Telecommunication,Beijing 100876,China)

机构地区：[1]天津理工大学聋人工学院,天津300384 [2]北京邮电大学网络空间安全学院,北京100876

出　　处：《计算机仿真》2019年第12期127-131,共5页Computer Simulation

基　　金：天津市工业企业发展专项资金项目(201707123)

摘　　要：日益增长的移动网络流量,导致了网络拥塞,较高的数据内容访问延时,以及网络频谱资源较低的利用率等问题。各种通讯技术、微电子技术等的发展,使得设备的智能性越来越高,当前的网络结构呈现出异构性。大多数工作多集中于边缘缓存技术与优化,前期在延时容忍网络等的路由策略研究也大多依靠移动节点的累积接触率进行建模。为了提升网络中数据投递的性能,通过分析对比节点的累积接触率与即时接触率不同,提出了一种基于节点即时接触率的多备份移动边缘路由策略(MCFS)。通过理论分析并与经典的多备份路由策略Homing-Spread和Spray-Wait相比,MCFS具有最优的数据包率以及数据包投递延时性能。仿真结果显示MCFS在降低了数据包投递延时的同时提高了数据包投递率。The growing mobile network traffic has caused many problems,such as network congestion,high data content access delay,and low utilization of network spectrum resources.At the same time,the development of various communication technologies and microelectronic technologies has made the intelligence of devices higher and higher,and the current network structure exhibits heterogeneity.Most of the work focuses on edge caching technology and optimization.The routing strategy research in the early stage of delay tolerant networks mostly relies on the cumulative contact rate of mobile nodes to model.In order to improve the performance of data delivery in the network,this paper proposes a multi-backup mobile edge routing strategy(MCFS)based on node instant contact rate by analyzing the cumulative contact rate of the compared nodes and the instant contact rate.Through theoretical analysis and compared with the classic multi-backup routing strategy Homing-Spread and Spray-Wait,MCFS has the optimal packet rate and packet delivery delay performance.The simulation results show that MCFS can improve the packet delivery rate while reduces the packet delivery delay.

关 键 词：即时接触率 多备份路由策略 移动边缘路由 异构无线网络 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]