Cross layer design of wireless LAN based on H.264/SVC and IEEE 802.11e

Telemedicine system requires an acceptable network quality of service and cost. IEEE 802.11 wireless LAN technology has been developed to provide scalable and low cost network. For telemedicine application however, the technology does not fulfil the quality of service requirement yet. Therefore, a cross layer design of wireless LAN is proposed to overcome this problem. The cross layer design based on H.264/Scalable Video Coding (SVC) and IEEE 802.11e Wireless Network has been implemented in NS2 simulation environment. The simulation intends to deliver four traffic flows of telemedicine application with different priorities and to assign telemedicine video with QoS guarantee over the proposed cross layer design of wireless LAN. The NS-2 simulation results show that the cross layer design can delivers 99.68 percent of video packets within average delay of 10.66 ms. Thus, this new design has a potential utilized in telemedicine system.