Packet loss effects on MPEG video sent over the public Internet
MULTIMEDIA '98 Proceedings of the sixth ACM international conference on Multimedia
Encapsulation and Marking of MPEG-4 Video Over IP Differentiated Services
ISCC '01 Proceedings of the Sixth IEEE Symposium on Computers and Communications
Joint Adoption of QoS Schemes for MPEG Streams
Multimedia Tools and Applications
A Novel Realistic Simulation Tool for Video Transmission over Wireless Network
SUTC '06 Proceedings of the IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing -Vol 1 (SUTC'06) - Volume 01
Quality of Experience management framework for real-time multimedia applications
International Journal of Internet Protocol Technology
BDIM-based optimal design of videoconferencing service infrastructure in Multi-SLA environments
APNOMS'09 Proceedings of the 12th Asia-Pacific network operations and management conference on Management enabling the future internet for changing business and new computing services
Enhancing the Performance of Video Streaming in Wireless Mesh Networks
Wireless Personal Communications: An International Journal
Quality of experience adaptation controllers for voice and video in wireless networks
WWIC'11 Proceedings of the 9th IFIP TC 6 international conference on Wired/wireless internet communications
QoE-based packet dropper controllers for multimedia streaming in WiMAX networks
Proceedings of the 6th Latin America Networking Conference
| Hi-index | 0.24 |
The failure of legacy packet markers, such as the Single Rate Three Color Marker (SRTCM) and the Two Rate Three Color Marker (TRTCM), to protect important data from being dropped, renders a poor delivery of video quality over Differentiated Services (DiffServ) networks due to the hierarchical structure of MPEG video. Therefore, we propose a content-aware packet marking scheme, which we call Two Markers System (TMS), to improve the delivery quality of MPEG video streams. TMS places marker modules at both the video source and the edge of a DiffServ network. The source marking modules act at the application-level to set an importance indicator in the IP header of the MPEG frame packet by evaluating the contribution of the packet to the expected picture quality perceived by an end user. Meanwhile, at the edge of the DiffServ network, the Enhanced Token Bucket Three Color Marker (ETBTCM) is proposed to perform packet marking at the network-level in accordance with the pre-assigned importance of individual video frame packets. When the traffic flow is measured as out-of-profile, the less important packets will be marked with higher probability than the more important ones. Therefore, in the event of network congestion, less important frame packets can be dropped before more important ones. Consequently, a better delivered video quality can be provided. Further, due to the convenience offered by wireless networks, more users choose mobile devices to connect to the Internet. Therefore, a Video Differentiator is suggested, placed at the entry to the IEEE 802.11e wireless network, to provide traffic differentiation and better service for video traffic. We use authentic MPEG4 video traffic traces to evaluate this framework. Results show that better video quality can be delivered over our proposed new framework.