Dynamic Region-Based Mobile Multicast
Traditional mobile multicast schemes have higher multicast tree reconfiguration cost or multicast packet delivery cost. Two costs are very critical because the former affects the service disruption time during handoff while the latter affects the packet delivery delay. Although the Range-Based Mobile Multicast (RBMoM) scheme and its similar schemes offer the trade-off between two costs to some extent, most of them do not determine the size of service region, which is critical to the network performance. Hence, the authors propose a Dynamic Region-Based Mobile Multicast (DRBMoM) to dynamically determine the optimal service region for reducing the multicast tree reconfiguration and multicast packet delivery costs.