Abstract
Worldwide Interoperability for Microwave Access (WiMAX) offers high speed data transfer with various quality of service (QoS) for different applications. One of the services is the downlink ratio adjustment. Theoretically, the parameter allows users to manage bandwidth for uplink and downlink direction. As there is no related work to proof this parameter adjustment, this paper examines the impact through network simulator for downlink streaming. With limited total capacity of the simulated network, by using 4 nodes with downlink traffics varied from 5 to 15 kbps, simulation proofs that by changing downlink ratio from 0.1 to 0.9, the downlink stream performance is increasing with delay decrement up to 5.34 ms, jitter decrement 9.1 ms and packet loss reduction about 97.62%.
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