Advanced Join Mechanism for Multicast Group Management in ITS Networks and Its Evaluation

In ITS networks, a number of mobile hosts are densely distributed in an area caused by traffic accidents or opening of amusement events. It is expected that the greater part of the mobile hosts will require commonly useful information, such as traffic information, parking information and other driving related information. It will be very effective to provide such information by using common communication channel. In this paper, we newly introduce a BS (Base Station) multicast group for management of mobile hosts belonging to a multicast group. By controlling the members of the group according to the movement of the mobile hosts, it is expected to reduce message traffic for the multicast group management, and to eliminate packet loss during mobile hosts’ movement between base stations. We show the effectiveness of the proposal by the result of a network simulator.