International Research Journal of Engineering and Technology (IRJET)
IEEE 802.11 is the standard MAC layer protocol being used in various wireless networks, WLAN is the major deployment of this protocol. The rapid increase of multimedia applications like VoIP, live video streaming and internet based games it has become crucial to provide Quality of Service (QoS). This paper provides the basic overview of existing QoS enhancements of IEEE 802.11 networks. Analysis of previous work is carried and specified various techniques to be implemented to achieve the QoS. The authors propose a new mechanism based on contention window modification (for VoIP and video traffic).