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Journal Paper


E-ODMRP : Enhanced ODMRP with Motion Adaptive Refresh.


On Demand Multicast Routing Protocol (ODMRP) is a multicast routing protocol for mobile ad hoc networks. Its e±ciency, simplicity, and robustness to mobility render it one of the most widely used MANET multicast protocols. At the heart of the ODMRP's robustness is the periodic route refreshing. ODMRP rebuilds the data forwarding \mesh" on a ¯xed interval and thus the route refresh interval is a key parameter that has critical impact on the network performance. If the route re- fresh rate is too high, the network will undergo too much routing overhead wasting valuable resources. If it is too low, ODMRP cannot keep up with network dynam- ics resulting in packet losses due to route breakages. In this paper, we present an enhancement of ODMRP with the refresh rate dynamically adapted to the environ- ment. Simulation results show that the Enhanced ODMRP (E-ODMRP) reduces the packet overhead by up to a half yet keeping a packet delivery ratio compara- ble that of original ODMRP. E-ODMRP compares favorably with other published multicast schemes.

Paper: PDF file of paper
Slides: PPT file of slides

Information & Date

Jorunal of Paralle and Distributed System, , August. 2008


Soon Young Oh
Joon-Sang Park
Mario Gerla