A solution of the pinball routing problem in a multihomed mobile network is proposed in the present work. All
the communication to and from the mobile network node in a nested mobile network passes through the tunnel between
mobile router and its home agent as mentioned in network mobility route optimization problem statement. Such problem
is formally known as pinball routing problem. But in the present scheme the communication to and from the mobile
network node may or may not pass through the home agents of mobile routers at the higher level of the nested network
depending upon the network mobility. Such consideration helps to minimize delay due to pinball routing effect. Moreover
in the present work direct communication is proposed if both the source node and the destination node lie inside the same
nested mobile network. The proposed scheme is the combination of route optimization algorithm and pinball routing
elimination algorithm in a nested multi-homed mobile network. The route optimization algorithm selects an optimal route
inside the mobile network of the source node. The pinball routing elimination algorithm selects the pinball eliminated
route from the mobile network to the destination node. The performance of the proposed scheme is evaluated on the basis
of tunneling overhead, end to end packet delay and fragmentation using ENEMO_SIM simulator. Results based on a
detailed performance evaluation study are also presented to demonstrate the efficacy of the proposed scheme.
Keywords: Mobile network, pinball route, mobile node, home agent, mobile router.
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