A Hierarchical Architecture for Mobile Ad Hoc Network with Internet Using Cluster Head Gateway

To connect the wired and wireless networks particularly the Mobile ad hoc Network is very interesting in real world situations due to its popularity and usefulness. Different mechanisms have been proposed to integrate MANETs and the Internet. These strategies differ in gateway discovery mechanism, cell switching criteria, ad hoc routing protocol. In our paper we remove the limitation from the above mentioned approaches and given a new approach in which cluster head and gateway will be same and that node is known as cluster head gateway (CHG), in which all the responsibilities of cluster head and gateway will be perform by the CHG and we introduces the prediction table concepts and discusses a mechanism for selecting an alternate route in case if the CHG is unable to forward the packets to the destination, This approach providing Bi-directional connectivity between MANET and wired Nodes. By applying this approach we will reduce the overhead for deciding the cluster and gateway for an Ad hoc network and by maintaining the prediction table we can decide which node will work as CHG in future to make our communication unaffected. Finally, this paper conducts simulation experiments in the conditions where we connecting MANET nodes to the wired nodes using different networks.