International Journal of Soft Computing and Engineering (IJSCE)
Quality of Service (QoS) is what determines if a wireless technology can successfully deliver high value services such as voice and video. The UGS service flow handles the traffic generated by VOIP calls in the most optimum way. Simulation is a powerful tool for analysis and improvement of networking technologies, and many simulation packages are available. One that is growing in popularity is NS-3, the successor to the popular NS-2. It is a significant departure from NS-2.