Multiple access protocols: performance and analysis
Multiple access protocols: performance and analysis
802.11 Wireless Networks: The Definitive Guide
802.11 Wireless Networks: The Definitive Guide
Low-latency wireless video over 802.11 networks using path diversity
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1
EURASIP Journal on Applied Signal Processing
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
H.264/AVC in wireless environments
IEEE Transactions on Circuits and Systems for Video Technology
H.264/AVC baseline profile decoder complexity analysis
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive Packetization for Conversational Video Service over IEEE 802.11 WLANs with Hidden Terminals
Wireless Personal Communications: An International Journal
Best Approach for Video Codec Selection Over VoIP Conversation Using Wireless Local Area Network
International Journal of Interdisciplinary Telecommunications and Networking
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New convergent services are becoming possible, thanks to the expansion of IP networks based on the availability of innovative advanced coding formats such as H.264, which reduce network bandwidth requirements providing good video quality, and the rapid growth in the supply of dual-mode WiFi cellular terminals. This paper provides, first, a comprehensive subject overview as several technologies are involved, such as medium access protocol in IEEE802.11, H.264 advanced video coding standards, and conversational application characterization and recommendations. Second, the paper presents a new and simple dimensioning model of conversational video over wireless LAN. WLAN is addressed under the optimal network throughput and the perspective of video quality. The maximum number of simultaneous users resulting from throughput is limited by the collisions taking place in the shared medium with the statistical contention protocol. The video quality is conditioned by the packet loss in the contention protocol. Both approaches are analyzed within the scope of the advanced video codecs used in conversational video over IP, to conclude that conversational video dimensioning based on network throughput is not enough to ensure a satisfactory user experience, and video quality has to be taken also into account. Finally, the proposed model has been applied to a real-office scenario.