QoS Performances Evaluation for Mobile WIMAX Networks based on OPNET

WiMAX is believed as a last mile wireless connection tool to offer flexible broadband facilities for ending users. The limitations and performances of WiMAX network have been considered for designing and then simulated by using OPNET, which based in this paper on many quality of services QoS parameters such as voice-packet end to end delay, as well as throughput. A simulation concentrated on two applications Light video, and heavy video at a square area and simulation time of about five minutes depending on multiple scenarios of WiMAX. A comparison made between WiMAX PCM voice with light video and heavy video data transmissions based on voice delay and throughput and shows the voice with heavy video has a delay less than the delay of voice with light video and the heavy video has larger throughput than light video.