A Wimax netw ork is once of most appea ling network that covers most of needs of a business network. A network that requiressecurity at high data speed is fulfilled by Wimax. Although this as the data is transferred at very high speed a small delay in communication or any decision making process will result the data loss over the network. Such kind of problem occur in a hierarical network where multiple users transfer data to other network, In such case the connecting node to these two network suffers the problem of bottleneck problem. As in case of bottleneck there is a tight end for the outside communication and it results the data loss. The proposed work is the implementation of OFDM to resolve this bottleneck problem. The Proposed work is the better utilization of network bandwidth to get the reliable solution. The bandwidth is shared by connecting nodes respective to the variable length data request. The system will first observe the number of request being transferring and the size of data communication made by each request and on this basis the bandwidth will be assigned to each network
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