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									IEEE 1609 Standards



Trial-Use Standards for Wireless Access in
Vehicular Environments (WAVE)


Sponsor
Intelligent Transportation Systems (ITS) Committee
of the
IEEE Vehicular Technology Society (VTS)




confidential and prepared by - Craig Etchegoyen
Wireless Access for Vehicular Environment (WAVE)


Wireless Access in Vehicular Environments (WAVE) is a radio
communications system intended to provide interoperable wireless
networking services for transportation.



WAVE provides a communication protocol stack optimized for the vehicular
environment, employing both customized and general-purpose elements.


Standards
IEEE Std 1609.1-2006™: Resource Manager
IEEE Std 1609.2-2006™: Security Services for Applications and Management Messages
IEEE Std 1609.3-2006™: Networking Services
IEEE Std 1609.4-2006™: Multi-Channel Operation




confidential and prepared by - Craig Etchegoyen
IEEE Trial-Use Standards for Wireless Access
in Vehicular Environments (WAVE) – 1609.1

Resource Management




confidential and prepared by - Craig Etchegoyen
1609.1™ WAVE - Resource Manager

Standard Description
   This standard specifies a WAVE Dedicated Short-Range Communications (DSRC)
    application, known as the WAVE Resource Manager (RM).


   RM allows applications at remote sites to communicate with devices known as OnBoard
    Units (OBUs), which are mounted in vehicles, through devices known as RoadSide Units
    (RSUs), which are mounted on the roadside.


   The WAVE RM, acting like an application layer, multiplexes the communications of multiple
    remote applications, each communicating with multiple OBUs.


   The purpose of the communication is to conduct information interchange, needed to
    implement the requirements of the remote WAVE DSRC applications.




   NOTE: This standard is based on IEEE Std 1455™-1999 [B4]a but intended for the 5.9
    GHz frequency band.
confidential and prepared by - Craig Etchegoyen
1609.1™ WAVE - Resource Manager

Standard Components
   WAVE device: A device that contains a WAVE conformant medium access control (MAC)
    and physical layer (PHY) interface to the wireless medium.


   Onboard Unit (OBU): A WAVE device that can operate when in motion and supports
    information exchange with roadside units (RSUs) and other OBUs.


   Roadside Unit (RSU): A WAVE device that operates only when stationary and supports
    information exchange with onboard units (OBUs).


   Application Protocol Data Unit (APDU): Packets of information transmitted over the
    communication media between the RMA and RM by the application service layer.




confidential and prepared by - Craig Etchegoyen
1609.1™ WAVE - Resource Manager

Standard Architecture




confidential and prepared by - Craig Etchegoyen
1609.1™ WAVE - Resource Manager

Standard Communication Flow
   In the above WAVE application, a provider, the Resource Manager (RM), provides service
    to a remote entity called Resource Manager Application (RMA) by relaying and executing
    commands to the user, onboard equipment controlled by the Resource Command
    Processor (RCP), and vice-versa.


   RMAs communicate with one or more RMs over a secure wired network, whereas an RM
    communicates with an RCP over the wireless link on which the security may be lacking. The
    RM acts as if it were an application layer to an RMA.




   NOTE: The RM may also be hosted by an OBU.




confidential and prepared by - Craig Etchegoyen
IEEE Trial-Use Standards for Wireless Access
in Vehicular Environments (WAVE) – 1609.2

Security Services for Applications and
Management Messages




confidential and prepared by - Craig Etchegoyen
1609.2™ WAVE - Security Services for Applications and
Management Messages
Standard Description
   This standard covers methods for securing WAVE management messages and application
    messages, with the exception of vehicle-originating safety messages. It also describes
    administrative functions necessary to support the core security functions.


   The scope of this standard is to define secure message formats, and the processing
    of those secure messages, within the DSRC/WAVE system.




confidential and prepared by - Craig Etchegoyen
1609.2™ WAVE - Security Services for Applications and
Management Messages
Standard Purpose
   The safety-critical nature of many WAVE applications makes it vital that services be
    specified that can be used to protect messages from attacks such as eavesdropping,
    spoofing, alteration, and replay.


   Additionally, the fact that the wireless technology will be deployed in personal vehicles,
    whose owners have a right to privacy, means that in as much as possible the security
    services should respect that right and not leak personal, identifying, or linkable information
    to unauthorized parties.




confidential and prepared by - Craig Etchegoyen

								
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