LSODMRP: Improved-ODMRP Multicast Routing Protocol Based on Local Broadcast and Stable Links for MANET
Lecture Notes in Electrical Engineering(2019)
Abstract
ODMRP which is robust to node-moving because of its grid structure is one of most important multicast routing protocols used in MANET. However, periodically broadcasting join query messages over the whole network easily leads to a high network overhead. Inspired by the idea of locally searching widely used in objective tracking, we propose LSODMRP to address this issue. In this protocol, the join query messages are broadcasted over nodes nearby the multicast-related nodes smartly. To correct the deviation from the right forwarding nodes, a mixed global broadcasting of join query messages is implemented periodically. We also propose a GPS-free stable link selecting policy based on learning to improve the performance further. Finally, we compared the performance between ODMRP and LSODMRP in terms of overhead, end to end delay and number of delivered packets in node-independent scenario and group-uniform scenario. The simulation results show that LSODMRP can outperform ODMRP.
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Key words
ODMRP,Multicast routing protocol,Stable links,Local broadcast
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