Comparing RED and Blue algorithms in NS2

In this study, Blue Active Queue Management (AQM) is implemented and compared with Random Early Detection (RED) algorithm in NS2, which is an open source network simulator widely used for network researching area.Nowadays, the rapid growth of the Internet requires supporting Quality of Service (QoS). Active Queue Management (AQM) is one of the most effective tools for all QoS measurements. Many AQMs are proposed and studied. One of the most known AQM is RED. RED uses queue length as the indicator of congestion. However, queue length gives us a very little information about congestion.To overcome RED and other AQMs shortcomings basically different AQM Blue is proposed. In contrary to RED, Blue uses packet drop event and link idle events as the indicator of congestion. This work compares performances of Blue and RED queue algorithms in different network situations.