Implementation of QoS over WLAN Networks of Model Nodes Using OPNET

Quality of Service (QoS) is an advanced feature that prioritizes internet traffic to minimize the impact of busy bandwidth. This paper presents a simulation study using WLAN technology and IEEE 802.11b protocol applied in E-learning classroom scenarios. Simulations were conducted using OPNET Modeler 14.5, analyzing parameters such as load, throughput, and media access delay. The study compares performance differences between fixed and mobile nodes.