EVALUASI KINERJA PENJADWALAN MODIFIED DEFICIT ROUND ROBIN (MDRR) DAN ROUND ROBIN (RR) PADA JARINGAN MOBILE WIMAX

Abstract

Nowdays, In the telecommunications world, WiMAX technology is one of the development technologies. Because WiMax technology is capable of supporting data transmission speeds are very high. One of the issues that are popular on this technology is the quality of service varies for each application that use. The quality of this service depends on the scheduling algorithm used in the WiMAX network. In Wimax,there are no standard that regulate scheduler implementation so the designers can implement any scheduling algorithm in WiMAX accordance with needs. In the final project will simulate the Mobile WiMAX network that aims to determine the performance of the algorithm used in this network. Scheduling will be analyzed in this final project was the Modified Deficit Round Robin (MDRR) and Round Robin (RR). Network simulations are conducted using OPNET 14.0 software. Some of the metrics used as performance benchmarks scheduling algorithm is throughput, delay, and Fairness Index. In the first scenario scheduling can work well for applications that run fourth. It can be seen from the results thoughput stable, time delay is small enough, and Firness index value approaching the value 1. In the second scenario scheduling can work well even though the throughput of Web applications has decreased. But overall throughput value remains stable. Value of time delay that occurs is also still quite small. While the Fairness index value decreased due to declining thoughput web applications. In the third scenario, all applications have a fairly stable value unless the web application,. It can be seen from the throughput, and delay time. While the Fairness Index decreased due to this scenario does not appear throughput web application. Throughput of this application does not arise because these applications have the lowest QoS, so when traffic is full throughput of this application does not appear. Keywords: mobile WiMAX, Scheduling, MDRR, RR, Fairness Index, throughput, OPNET