一种基于ELM预测的NDN移动性支持方法

doi:10.11959/j.issn.1000-0801.2017329

Abstract

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

CLC Number:

TP393

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

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

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