Composite multimedia and active objects
OOPSLA '91 Conference proceedings on Object-oriented programming systems, languages, and applications
Videoconferencing on the Internet
IEEE/ACM Transactions on Networking (TON)
Object-oriented software construction (2nd ed.)
Object-oriented software construction (2nd ed.)
Performance study of access control in wireless LANs—IEEE 802.11 DFWMAC and ETSI RES 10 Hiperlan
Mobile Networks and Applications - Special issue on channel access in wireless networks
Hybrid ARQ for Robust Video Streaming Over Wireless LANs
ITCC '01 Proceedings of the International Conference on Information Technology: Coding and Computing
Supporting digital video in a managed wireless network
IEEE Communications Magazine
Efficient video transmission over correlated Nakagami fading channels for IS-95 CDMA systems
IEEE Journal on Selected Areas in Communications
Error recovery for interactive video transmission over the Internet
IEEE Journal on Selected Areas in Communications
Error resilience support in H.263+
IEEE Transactions on Circuits and Systems for Video Technology
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This paper analyzes different packetization strategies that significantly improve the quality of H.263 coded video transmission in wireless local area networks (WLANs). We show that a considerable improvement can be obtained with the proper combination of error concealment techniques and transmission unit (TU) sizes. Moreover, we present performance evaluation results on critical system parameters for interactive video over Ad-Hoc WLANs, and propose a simple rule to specify TU sizes. We use Kinesis, a novel system architecture for packet video, as a software measurement tool to analyze the effects of packetization policies, distance, network offered load, and interference from co-located WLAN devices on overall video quality. Kinesis supports IP multicast extensions, overcoming delay issues introduced by the complex retransmission schemes in the IEEE 802.11 MAC sublayer, which are not acceptable for real-time services. It implements real-time transport protocol functions to manage synchronization and QoS, and performs software-only real-time H.263 video encoding.In this paper we address most common Ad-Hoc WLAN configurations, and present experimental results on Packet Error Rates, Frame Error Rates, frame delays and latency, and Peak Signal-to-Noise Ratio for well-known test video sequences.