Cross-layer design for video transmission in wireless multimedia sensor networks

Wireless Multimedia Sensor Networks (WMSNs) advances have enabled to transmit video applications. However, WMSNs technology does not fulfil the quality of service requirement yet because of multi-hop manner, changing bandwidth, and limited resources. Whereas video applications require specific Quality of Service (QoS), namely high throughput, low end-to-end delay, and packet drop rate. This paper discusses an optimization of video transmission via wireless multi-hop manner in WMSN. The optimization utilizes a cross-layer design model based on IEEE 802.11e EDCA and H.264/SVC. The cross-layer design based on H.264/Scalable Video Coding (SVC) and IEEE 802.11e Wireless Network has been implemented in NS2 simulation. The Network Simulator 2 (NS2) simulation intends to deliver four data flows with different priorities and to assign video transmission considering Quality of Service (QoS) provision over the proposed cross-layer design of WMSN. The Network Simulator 2 (NS2) simulation results show that the cross-layer design can deliver the video packets within an average delay of 0.02 second. So the cross-layer design model has managed to optimize video transmission via Wireless Multimedia Sensor Network (WMSN).