基于VPN的车载网关异构无线网络切换系统

吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (05): 1292-1297.

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System of vertical handoff for heterogeneous wireless network based on VPN on invehicle gateway

QU Liang-dong ^1,2,LIU Yan-heng^1,2,WEI Da^1,2

1.College of Computer Science and Technology, Jilin University, Changchun 130012,China； 2.Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jinlin University, Changchun 130012, China

Received:2009-11-14 Online:2010-09-01 Published:2010-09-01

Abstract

Abstract:

A system of vertical handoff for heterogeneous wireless network based on (Virtual Private Network (VPN) on invehicle gateway was designed and implemented. It provides a Wireless Local Area Network (WLAN) card, which supports 802.11 protocol on the invehicle gateway, and a Code Division Multiple Access (CDMA) wireless communication module to support both WLAN and Wireless Wide Area Network (WWAN). A virtual network interface was implemented to achieve the independence between the application level program communication and lowlevel protocol, so that it can realize seamless connection of the heterogeneous wireless networks. Experiment results show that this invehicle gateway system can be widely applied in invehicle system with low power consumption and low operational ability.

Key words: computer systems organization, embedded Linux, in vehicle gateway, vertical handoff, VPN

CLC Number:

TP393

QU Liang-Dong, LIU Yan-Hang, WEI Da. System of vertical handoff for heterogeneous wireless network based on VPN on invehicle gateway[J].吉林大学学报(工学版), 2010, 40(05): 1292-1297.

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