Light Load Multicast Protocol in NEMO Network

The studies for the traditional multicast protocols in the NEMO (Network Mobility) network architecture have shown that traditional multicast protocols always have a considerable cost in reconstructing the multicast tree. However, the mobility of multicast sources is rarely discussed. We present an enhanced multicast protocol, which extends from the Multicast Listener Discovery (MLD) protocol, named Light Load Multicast (LLM), in the NEMO environment. The LLM is considered the alternative MLD to maintain the multicast tree in the NEMO. The LLM has two benefits. The reconstruction mechanism handles the mobility of the multicast source by reconstructing the multicast tree. The multigroup suppression mechanism curbs the multicast tree maintenance cost for the mobility of the multicast members. The study result shows the scheme implementation and inspects the performance with traditional multicast protocols.