應用於智慧型車路系統之無線電分封網路架構分析

Abstract

本研究為探討利用無線電分封網路通訊技術，以提供智慧型車路系統中用 路人資訊子系統之可行性。在智慧型車路系統中為達到用路人與交通控制 中心資料交換的功能，必須依賴可靠、有效、易建立之通訊基礎架構，以 提供其功能，方便用路人於行車中使用。本研究提出結合無線廣播系統與 細胞行動通訊系統所成之智慧車路系統的無線通訊架構，為探討二大課題 ，一為在細胞化之小區域中隨機存取技術之比較探討，二為在大區域廣播 中排隊理論之討論。本研究並建立模式，由各模擬分析中發現，將可通訊 區予以細胞化並輔助廣播式較大區域涵蓋，在數據通訊之效果上將可達到 相輔相成之功效。 In this study, based on packet radio approach, we present a wireless communication infra-structure for Driver Information System in an Intelligent Vehicle Highway System (IVHS). In IVHS ,the data-exchange between drivers and traffic-control-center must depend on a reliable, efficient and easy-established communication link that can support various traffic guidance functions. We propose a communication system that combines radio broadcasting system and cellular mobile phone concept for IVHS. There are two main topics, we analyze and compare serveral multiple access techiques in cellularized areas, and then discuss the broadcasting scheme in a big area using queueing system. Based on the sumulation result, we conclude the system we recommended can achieve betst result in two-way data communication.