IEEE 1609.0-2013 pdf free download – IEEE Guide for Wireless Access in Vehicular Environments (WAVE) Architecture.
4. Relevant standards
4.1 Overview of Intelligent Transportation Systems and the National ITS architecture This subclause provides a brief context for the WAVE standards, and includes information on related activities. Intelligent Transportation Systems (ITS) are being developed throughout the world. The United States ITS program was created by Congress in the Intermodal Surface Transportation Efficiency Act of 1991, and is administered by the U. S. Department of Transportation (DOT). The program uses advanced electronics to improve traveler safety, decrease traffic congestion, facilitate the reduction of air pollution, and conserve vital fossil fuels. ITS improve transportation safety and mobility and enhances productivity through the use of advanced communications and information systems technologies. ITS encompass a broad range of fixed and mobile communications-based information and electronics technologies. When integrated into the transportation system’s infrastructure, and into vehicles themselves, these technologies relieve congestion, improve safety, and enhance productivity. One of the key initiatives within the U. S. ITS program is the National ITS Architecture. The National ITS Architecture is the definitive framework that will guide deployment of intelligent transportation systems in the U.S. for the next 20 years or more.
The latest version of the National ITS Architecture is Version 7, the details of which can be found at: http://www.its.dot.gov/arch. The National ITS Architecture provides a common framework for planning, defining, and integrating intelligent transportation systems. The architecture defines the following:
⎯ Functions (e.g., gather traffic information or request a route) that are required for ITS.
Physical entities or subsystems where these functions reside (e.g., the field or the vehicle).
This architecture guide focuses on the physical entities or subsystems of an ITS architecture, for example the U. S. National ITS Architecture. The National ITS Architecture describes a physical representation (though not a detailed design) of how the system provides the required functionality. Four categories of subsystems are identified: Travelers (e.g., Remote Traveler Support, Personal Information Access), Centers (e.g., Traffic Management, Emergency Management), Vehicles, and Field (e.g., Roadway Payment, Parking Management). The roadside unit (RSU) exists in the “Field” area, and the onboard unit (OBU) exists in the “Vehicle” area. The WAVE communications provide vehicle-vehicle communications and field-vehicle communications.
4.2 ASTM and the Federal Communications Commission (FCC) Pursuant to the Transportation Equity Act for the 21st Century, the U. S. FCC, in consultation with the U. S. DOT, allocated the 5.850–5.925 GHz band to DSRC in October 1999. (See 5.6.) On November 7, 2002, the FCC adopted a Notice of Proposed Rule Making (NPRM) seeking comment on proposed DSRC service rules in the 5.9 GHz band, and on December 17, 2003, it adopted the DSRC service rules. To promote the widespread use and evaluation of intelligent vehicle-highway systems technology, the Commission in the DSRC Report and Order FCC 03-0324 [B7] adopted the ASTM E2213-03 Standard (ASTM-DSRC) [B1], which was supported by most commenters and which had been developed under an accredited standard setting process. To achieve interoperability, allow open eligibility, and encourage the development of a market for equipment that will meet the needs of public safety DSRC licensees, the rules adopted by the FCC require all DSRC operations in the 5.9 GHz band to comply with the ASTM-DSRC standard. DSRC Roadside Units (i.e., communication units that are fixed along the roadside) are licensed under Part 90 Subpart M of the FCC rules (“Intelligent Transportation Systems Radio Service”). RSU licensees receive non-exclusive geographic-area licenses authorizing operation on seventy of the seventy- five megahertz of the 5.9 GHz band. OBUs are licensed by rule under new Subpart L of Part 95 of the FCC rules; OBU operation is not geographically restricted by FCC license. Since 2003, work has continued on IEEE standards for the 5.9 GHz band, making the FCC reference to the ASTM-DSRC standard obsolete. It is currently expected that equipment deployed in the 5.9 GHz band in the U. S. will be compliant to the IEEE 1609 family of standards and IEEE Std 802.11-2012.IEEE 1609.0 download.