CHANNEL ACCESS IN VEHICULAR COMMUNICATION NETWORK

摘要

A method and a system for accessing a channel in a vehicular communication network are provided, where successive cycles each of which includes N time slots are defined in the channel. The method may include: a first communication device mounted on a first node receiving a channel allocation advertisement message from a second communication device mounted on a second node, where the channel allocation advertisement message includes information of how a communication area is divided into M regions and a mapping between the M regions and the N time slots; the first communication device determining in which region the first node is located based on the position of the first node and the information; the first communication device identifying a time slot based on the determined region and the mapping; and the first communication device competing for the identified time slot.