| 基于VPN的车载网关异构无线网络切换系统 |
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| 引用本文： | 曲良东,刘衍珩,魏达.基于VPN的车载网关异构无线网络切换系统[J].吉林大学学报(工学版),2010,40(5). |
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| 作者姓名： | 曲良东 刘衍珩 魏达 |
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| 作者单位： | 吉林大学,计算机科学与技术学院,长春,130012;吉林大学,符号计算与知识工程教育部重点实验室长春,130012 |
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| 基金项目： | 国家科技部国际合作与交流专项项目，国家发改委下一代互联网业务试商用及设备产业化专项项目，国家自然科学基金 |
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| 摘 要： | 设计和实现了在嵌入式Linux车载网关中基于VPN(Virtual private network)的异构无线网络切换系统。车载网关中使用支持802.11协议的无线网卡连接无线局域网和支持CDMA的无线通信模块来连接无线广域网,软件上采用虚拟网络接口来实现上层应用程序通信与底层协议的无关性,从而实现了这种异构无线网络的无缝衔接,提高了网络利用效率。实验结果表明,该系统简单有效,适用于低能耗、低运算能力的车载系统中。
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| 关 键 词： | 计算机系统结构 嵌入式Linux 车载网关 垂直切换 虚拟专用网络 |
System of vertical handoff for heterogeneous wireless network based on VPN on in-vehicle gateway |
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| QU Liang-dong,LIU Yan-heng,WEI Da.System of vertical handoff for heterogeneous wireless network based on VPN on in-vehicle gateway[J].Journal of Jilin University:Eng and Technol Ed,2010,40(5). |
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| Authors: | QU Liang-dong LIU Yan-heng WEI Da |
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| 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. |
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| Keywords: | computer systems organization embedded Linux in-vehicle gateway vertical handoff VPN |
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