Service Differentiation Strategy Based on Packet Loss Rate for 802.11 Wirelesses LAN

With the rapid development of multimedia applications such as video on demand, VoIP, web conferencing, distant education etc. the current IEEE 802.11´s Best-effect Service is unable to meet the different needs of these multimedia applications and users´ request towards the quality of the network. Therefore, the research has broad prospects in improving the efficiency of the network and meeting the different needs of the users. This paper comes up with direct packet loss rate to realize service differentiation strategy, which allows high-priority node packet loss rate to be low while low priority node packet loss rate is high, beyond the condition that the total load is under control. This scheme is quite simple and easy to achieve without changing the 802.11 protocol.