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In this paper we propose a two step solution to the joint flow control and physical resource allocation problem for multi-service OFDMA system. We develop a flow control algorithm for the data generated at the remote server stations. This data corresponds to the service demanded by a particular user in a wireless cell. Our flow control algorithm derives an output data rate for each user while considering the variable nature of the channel capacity and pass these rates to the base station (BS). At the BS, physical layer resource allocation algorithm allocates the subcarrier and power to the users according to the proposed data rates. Simulation results show good performance and increased system throughput.