Scheme to improve the QoS of MPEG4 over WLAN

IEEE 802.11e is put forward to improve the quality of service (QoS) of WLAN. But how to apply it to different applications is still a problem. This paper focus on apply EDCA to improve the QoS of MPEG4 service over WLAN. The scheme use cross-layer design to map different type of MPEG4 frames to different EDCA AC in order to get better QoS and also proposed an IAEDCF to further improve the QoS. From the NS-2 simulation results, it is proven efficient. This article puts forward two novel user-grouping algorithms for grouped multi-carrier (MC)-code division multiple access (CDMA) systems.