发明授权
- 专利标题： Methods for efficient organization of vehicle peer groups and efficient V2R communications
- 专利标题（中）： 有效组织车辆对等组和高效V2R通信的方法
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申请号： US12120330申请日： 2008-05-14
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公开(公告)号： US08351417B2公开(公告)日： 2013-01-08
- 发明人: Wai Chen , Taek Jin Kwon , John Lee , Ryokichi Onishi , Toshiro Hikita
- 申请人： Wai Chen , Taek Jin Kwon , John Lee , Ryokichi Onishi , Toshiro Hikita
- 申请人地址： US NJ Piscataway US CA Palo Alto
- 专利权人： Telcordia Technologies, Inc.,Toyota InfoTechnology Center, U.S.A., Inc.
- 当前专利权人： Telcordia Technologies, Inc.,Toyota InfoTechnology Center, U.S.A., Inc.
- 当前专利权人地址： US NJ Piscataway US CA Palo Alto
- 代理商 Philip J. Feig
- 主分类号： H04L12/28
- IPC分类号： H04L12/28
摘要：
The present invention provides methods for efficient control message distribution in a VANET. Efficient flooding mechanisms are provided to fulfill the objective of flooding (delivering a message to every connected node) with a limited number of re-broadcasting by selected key nodes. A suppression-based efficient flooding mechanism utilizes a Light Suppression (LS) technique to reduce the number of flooding relays by giving up the broadcasting of a flooding message when a node observes downstream relay of the same flooding message. Additionally, a relay-node based efficient flooding mechanism selects Relay Nodes (RN) to form an efficient flooding tree for control message delivery. RNs are nodes that relay at least one control message, for instance a Membership Report (MR) to the upstream node in “k” previous control message cycles The upstream node may be the group header (GH) for the LPG.
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