Practical plug-and-play of automobile applicaions with standard ethernet = 범용 이더넷을 통한 자동차 어플리케이션의 실용적인 플러그 엔 플레이

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Vehicular networks have traditionally focused on the real-time delivery of critical control messages for safe car operation. Unfortunately, the real-time requirements often cripple the development of flexible car applications by tying an application network stack to underlying physical networks. While popular real-time vehicular networks guarantee the timely delivery of prioritized messages, they often lack in bandwidth and flexibility, which limit the range of car network applications.In this work, we explore the idea of replacing the current vehicular network with standard switched Ethernet, the most popular LAN technology in computer networks. Ethernet is attractive in providing large bandwidth at a low cost with easy and flexible configuration. The most challenging part is to guarantee the real-time delivery of mission-critical messages. We first show that the soft message delivery latency of 10s to 100s milliseconds can be easily met in 100 Mbps switched Ethernet despite coexistence of high-bandwidth network applications. For meeting the hard delivery latency requirement on the order of 100 microseconds for critical control messages, we propose limiting the path MTU to the destination node with priority queuing from IEEE 802.1Q. Our simulation and experiments show that we can satisfy 100 microseconds of latency even in a rich set of vehicular applications without any modification of the application network stack. We also have discussed the bootstrapping process with simple DNS and DHCP server in automobile. The bootstrapping provides the IP addresses of ECUs automatically for providing flexibility to automobile.
Park, Kyoung-Sooresearcher박경수
한국과학기술원 : 전기및전자공학과,
Issue Date
566516/325007  / 020113441

학위논문(석사) - 한국과학기술원 : 전기및전자공학과, 2013.8, [ iv, 31 p. ]


Ethenet; IEEE 802.1Q; 최대 전송 단위; 차량 내 네트워크; 이더넷; IEEE 802.1Q; In-vehicle networks; MTU

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