This report describes our contribution to the Intelligent Transportation System (ITS). A summary of our work vision, objectives and approach to build and deploy the UDM test bed is presented along with recommendations to enhance system performance. The UDM research program final report is organized into five sections: Section 1: Final Report: UDM Research, Executive Summary. This section provides an overview of the UDM research as well as brief background of ITS along with goals and objectives of our research. Moreover, this section illustrates the action plan of our research. This section does not provide the detailed test results. However, it is recommended for general managers of transportation agencies who are concerned with the overall vision of ITS. Section 2: Final Report: UDM Research, WLAN Evaluation for IVC Application. This section shows the evaluation of using WLAN protocols in Inter-Vehicle Communication (IVC) environments. Moreover, it includes all technical information. This section is recommended for researchers, research-group leaders and research assistants who are concerned with the deployment of WLAN protocols in IVC environments. Section 3: Final Report: UDM Research, UDM Test Bed. This section provides the details and results of the two approaches investigated in our research. UDM test bed and architecture, however, were described with the test bed component. Example of how to evaluate the performance of an IVC is also provided in this section. This section is recommended for researchers, research-group leaders and research assistants who are concerned with the deployment of the test bed concept to evaluate different IEEE802.11 protocols. Section 4: Final Report: UDM Research, Doppler Shift Investigation. This section provides information on how Doppler shift can affect the performance of WLAN protocols in IVC environments. A new method to enhance the performance of these protocols for such a dynamic environment is presented as well. This section is recommended for researchers, research-group leaders and research assistants who are concerned with Doppler shift and its impact on performance. Section 5: Final Report: UDM Research, Traffic Light Scenario Evaluation. This section evaluates traffic flow at intersections relative to number of nodes and communication metrics. A study is conducted to compare adaptive traffic light and fixed-time traffic light controllers to the number of vehicles. This section is recommended for researchers, research-group leaders and research assistants who are concerned with traffic light control systems and their impact on traffic flow. (Author/publisher)
Samenvatting