一种基于ELM预测的NDN移动性支持方法

doi:10.11959/j.issn.1000-0801.2017329

电信科学 ›› 2017, Vol. 33 ›› Issue (12): 53-65.doi: 10.11959/j.issn.1000-0801.2017329

一种基于ELM预测的NDN移动性支持方法

曲桦¹,李岩松²,赵季红^1,³,赵东旭²,赵建龙²

¹ 西安交通大学电子与信息工程学院，陕西西安 710049
² 西安交通大学软件学院，陕西西安 710049
³ 西安邮电大学通信与信息工程学院，陕西西安 710061

修回日期:2017-12-08 出版日期:2017-12-01 发布日期:2018-01-12
作者简介:曲桦（1961-），男，博士，西安交通大学电子与信息工程学院教授、博士生导师，主要研究方向为现代通信网、计算机网络体系结构。|李岩松（1992-），男，西安交通大学软件学院硕士生，主要研究方向为软件定义网络、信息中心网络。|赵季红（1963-），女，博士，西安交通大学电子与信息工程学院、西安邮电大学通信与信息工程学院教授，主要研究方向为宽带通信网、新一代网络的管理与控制。|赵东旭（1993-），男，西安交通大学软件学院硕士生，主要研究方向为基于软件定义网络流量监控及分类。|赵建龙（1992-），男，西安交通大学软件学院博士生，主要研究方向为面向软件定义网络的流量工程技术及北向接口协议。
基金资助:
国家自然科学基金资助项目(61371087);国家自然科学基金资助项目(61531013)

A mobility support method based on ELM prediction for named data networking

Hua QU¹,Yansong LI²,Jihong ZHAO^1,³,Dongxu ZHAO²,Jianlong ZHAO²

¹ School of Electronic and Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China
² School of Software Engineering,Xi’an Jiaotong University,Xi’an 710049,China
³ School of Communication and Information Engineering,Xi’an University of Posts and Telecommunication,Xi’an 710061,China

Revised:2017-12-08 Online:2017-12-01 Published:2018-01-12
Supported by:
The National Natural Science Foundation of China(61371087);The National Natural Science Foundation of China(61531013)

摘要/Abstract

摘要：

命名数据网络（NDN）架构是信息中心网络思想指导下的新一代网络架构，移动性支持方法是命名数据网络架构下的主要研究点。传统的生产者端移动性支持方法都采取事后应对的方式，对消费者而言，该方法无法保证切换过程的透明性。针对上述问题，提出了一种基于ELM预测的移动性支持方法PB，该方法对原有前向转发表进行修改，并增加了新的控制消息分组使得网络中相应节点可以针对预测算法的结果进行提前调整，并且兴趣分组多播的方式使得无论何时发生切换，生产者终端都能立即对兴趣分组进行响应，同时方法针对预测可能失败的问题提供了快速恢复网络原有状态的方法。仿真实验表明，本文提出的PB移动性支持方法相比于RP和IP移动性支持方法能显著降低切换时延，减少因切换导致的分组丢失。

关键词: 命名数据网络, 移动性支持, ELM预测, 切换时延, 分组丢失

Abstract:

Named data networking (NDN) is a new generation network architecture under the guidance of information center network,and the mobility support method is the main research point in NDN.In the traditional way of the producer-side mobility support method,the post-response mode is adopted,which makes it impossible to realize the transparency of the switching process.A mobility support method called PB based on ELM prediction was proposed.In the method,the original forwarding interest base was modified and a new control message packet was added so that the corresponding node in the network could adjust the result of the prediction algorithm in advance,and the switch of the producer terminal could respond to the interest package at any time by means of interest packet multicast.At the same time,the method provided a way to quickly restore the original state of the network for the problem that the prediction may fail.The simulation results show that the proposed PB mobility support method can reduce the handoff latency and the packet loss caused by handoff compared with the RP and IP mobility support methods.

Key words: named data networking, mobility support, extreme learning machine prediction, handoff latency, packet loss

中图分类号:

TP393

曲桦,李岩松,赵季红,赵东旭,赵建龙. 一种基于ELM预测的NDN移动性支持方法[J]. 电信科学, 2017, 33(12): 53-65.

Hua QU,Yansong LI,Jihong ZHAO,Dongxu ZHAO,Jianlong ZHAO. A mobility support method based on ELM prediction for named data networking[J]. Telecommunications Science, 2017, 33(12): 53-65.

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仿真参数	参数值配置
横向移动范围/m	1 000
纵向移动范围/m	1 000
生产者最大移动速度/(m·s^-1)	15
生产者最小移动速度/(m·s^-1)	5
位置计算间隔/s	10
小区半径/m	144

仿真参数项	仿真参数值
有线链路带宽/(Mbit·s^-1)	100
无线链路带宽/(Mbit·s^-1)	10
L-1节点和L-2节点间的链路时延/ms	10
任意两个L-2节点间的链路时延/ms	5
域1中L-2节点和L-3节点间的链路时延/ms	3~5
域1中两个L-3节点间的链路时延/ms	1~3
域2中L-2节点和L-3节点间的链路时延/ms	3~5
域2中两个L-3节点间的链路时延/ms	1~3
用户与其接入点之间的链路时延/ms	0.5
兴趣分组的发送速率/(个·s^-1)	100

一种基于ELM预测的NDN移动性支持方法

A mobility support method based on ELM prediction for named data networking

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