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題名 | 地域性網路之技術與應用=Technology and Application of GeoNetworking |
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作者 | 蔡嘉泰; 康博竣; | 書刊名 | 電腦與通訊 |
卷期 | 147 2012.10[民101.10] |
頁次 | 頁119-125 |
專輯 | 車載通訊與網路技術專題 |
分類號 | 448.6 |
關鍵詞 | 地域性網路協定; 車載隨意網路; 車用環境無線存取; GeoNetworking protocol; GN protocol; Vehicular Ad-Hoc network; VANET; Wireless access for vehicular environment; WAVE; |
語文 | 中文(Chinese) |
中文摘要 | 在車載資通訊的領域中,目前以車載隨意網路發展的最快速,目前已經有相當多的研究機構與企業投入資源進行開發與研究,但是在車載隨意網路中訊息如何正確地傳遞給需要的車輛以及有效率地傳輸是目前最需要解決的問題。除此之外,制定與規格化與行車安全資訊相關的訊息也是在行車安全範疇上急需解決的問題。因此,ETSI提出了GeoNetworking(GN)傳輸協定,此為網路層的傳輸協定,用以提升訊息在車載隨意網路中的傳輸效率以及避免訊息在傳遞時在網路中造成廣播風暴的問題。針對行車安全訊息方面,ETSI也制定了二個與行車安全相關的訊息規格,分別為CAM以及DENM,透過GN傳輸協定在車載隨意網路中可以非常有效地將行車安全訊息傳送至正確以及需要的車輛,根據分析GN將會是下一世代在車載隨意網路中最受注目的應用。 |
英文摘要 | Vehicle ad-hoc network (VANET) is developed rapidly in the field of Telematics, which have a considerable number of research institutions and business companies invest resources in this topic. However, how to deliver the message to the vehicle in the VANET correctly and rapidly is one of the works that the most need to be solved. Therefore, ETSI (European Telecommunications Standards Institute) proposed the GeoNetworking, the network layer protocol, which can increase the transmission efficiency and avoid the broadcast storm problem in the VANET. ETSI also proposed two types of the vehicle safety messages, CAM (Cooperative awareness message) and DENM (Decentralized environmental notification message). According to GeoNetworking, the CAM and DENM can be delivered to the correct vehicle very fast and efficiency, which can decrease the ratio of the car accident efficiently. Thus, GeoNetworking will be the most anticipated application of the next generation vehicle ad hoc networks. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。