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Modeling and Simulation of Quality of Service in VoIP Wireless LAN

This work presents computer modeling and simulation of the IEEE 802.11 standard to improve its Quality of Service (QoS) when different wireless stations are allowed for roaming. Request-to-Send and Clear-to-Send (RTS/CTS) frames are added as means to overcome the hidden node problem that could occur in wireless local area networks. The obtained simulation results are presented and discussed, including the ones for Quality of Service differentiation.