The Performance of PoolODMRP Protocol

Abstract

The PoolODMRP is proposed as an extension of PatchODMRP [1]. The PoolODMRP reduce the local recovery scope of PatchODMRP to one-hop with help of pool nodes. In the PoolODMRP, the nodes, which are not forwarding nodes, however, can receive data packet, are defined as pool nodes to collect route information from their received data. When a forwarding node detects that there is a link failure between it and one of its upstream nodes, it sends out a Local Query. After receiving Local Query, a neighbor pool node checks whether it connects to the sources defined in the Local Query packet by the route information collected form data packets. If it does, the neighbor answers with a Local Reply. The repairing forwarding node collects the information in its received Local Reply, and informs the oldest answered neighbor pool node to be a forwarding node. In this way, one-hop local recovery is realized in PoolODMRP. The simulation results show that the Pool has a similar data deliver ratio with that of ODMRP [2] and PatchODMRP; its local recovery control overhead is 19.2 % of that of PatchODMRP; its control overhead is only 41.2% of that of PatchODMRP, and 23.6% of that of ODMRP; its data overhead is only 64.7% of that of PatchODMP, and 79.7% of that of ODMRP.

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