OFDMA scheduling with code aware relay network in link selection

In the Twenty First Century wireless communication being used like essential communication mean for data transfer, video streaming & multimedia applications. To use buoyant application fit for such growing demand for data transfer in smart phones latest technology is being searched. To satisfied such demand; two hop Orthogonal Frequency Division Multiple Access (OFDMA) relay network are being powerfully used in combination with Multicasting which forms a encouraging communication model for many applications along with data transfer. Innovation shows that, Association of relay network and cooperation between them is proper way of optimization. For active use of relay network for retransmission, cross layer optimization technique is processed. Joint incorporation of OFDMA scheduling and network coding mechanism is carried out in intellectual method. The aim of this paper is to know how wireless node automatically selects the channel in presence of network coding also how OFDMA scheduling assigns the network source to it. We then formulated the optimization problem for different channel gain subcarrier and stated the helpful solution to assign sub channels to relay node dynamically with code aware and allocation scheme. This problem is NP-hard we applied a heuristic algorithm to implement it. Comparative rational algorithm uses the combination of scheduling and coding the relay logically their by aggregate the throughput, trustworthiness of the network and decreasing the overhead of the coordinated nodes.