Performance Analysis of TCP Linux in WiMAX Network with Network Asymmetry

WiMAX technology supports to different MAC and Physical Layer parameters. The performance of TCP Linux in WiMAX network is analyzed by varying MAC layer and Physical layer parameter such as channel bandwidth, cyclic prefix, modulation coding scheme, frame duration, DL: UL ratio, propagation model, full duplex mode of data transfer and other operating parameter such as downloading traffic. These parameters really affect the performance of TCP Linux in WiMAX networkin case of network asymmetry. The WiMAX network asymmetry is largely depends on DL: UL ratio. The performance of WiMAX network is analyzed using three performance metrics such as throughput, goodput and number of packets dropped. This paper also gives the optimal parameters for MAC and Physical layer to enhance the data rate.