A simulation study to investigate the impact of mobility on stability of IP multicast tree

Abstract

Mobile users expect similar kinds of applications to static ones, including various IP multicast applications. In mobile environment, the multicast tree should face with not only the dynamic group membership problem but also the mobile node's position change issue. In this paper, we study the stability of IP multicast tree in mobile environment. We define a stability factor and investigate how the various elements of network and mobility impact on it. It is shown that the stability factor is mainly dominated by three elements, namely the ratio of the number of mobile nodes and network size, mobility model and the mobile multicast scheme. These results can give some useful references when we design a new mobile multicast scheme in the future. © Springer-Verlag Berlin Heidelberg 2005.