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Wireless Access in Vehicular Environments
Abstract
The IEEE 1609 standards define communication for wireless access in vehicular environment (WAVE) services, which enable vehicle-to-vehicle, vehicle-to-roadside, as well as vehicle-to-infrastructure communications. The standard consists of four parts, which are briefly described in this chapter. IEEE 1609.1 describes the WAVE resource manager which specifies the wireless access method in a WAVE environment and allows a remote manager application to establish connection with a resource command processor on an on-board unit. IEEE 1609.2 defines several secure message formats to process messages for WAVE system. The standard covers methods for securing WAVE management messages and application messages, which protects messages from attacks such as eavesdropping, spoofing, alteration, replay, and linkable information to unauthorized parties. IEEE 1609.3 defines network services for WAVE systems, whose network services operate at the network and transport layers of the OSI model and support both the IPv6 traffics and the WAVE short message services. IEEE 1609.4 describes WAVE multi-channel operations. It specifies the functions of MAC sublayer management entity and WAVE MAC with channel coordination. The multi-channel operation provides an efficient mechanism that controls the operation of upper layer across multiple channels.
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