MAR: a commuter router infrastructure for the mobile Internet
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Proceedings of the 2nd ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Improving loss resilience with multi-radio diversity in wireless networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Realizing the benefits of user-level channel diversity
ACM SIGCOMM Computer Communication Review
Research and design of a mobile streaming media content delivery network
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
Journal of Visual Communication and Image Representation
Multi-radio diversity in wireless networks
Wireless Networks
Dimensioning method for conversational video applications in wireless convergent networks
EURASIP Journal on Wireless Communications and Networking - Multimedia over Wireless Networks
Robust wireless video streaming using hybrid spatial/temporal retransmission
IEEE Journal on Selected Areas in Communications
Journal of Network and Computer Applications
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Wireless local area networks, such as 802.11b, are becoming wide-spread as they provide simple wireless connectivity and data delivery. This paper examines low-latency (conversational) video communication over 802.11b networks. The challenges to enable low-latency video include overcoming the highly variable delays, losses, and bandwidth of 802.11b wireless networks. To overcome these challenges we (1) employ the H.264/MPEG-4 advanced video coding (AVC) standard for high video compression efficiency and good resilience to losses, (2) use low-latency best-effort transport mechanisms, and (3) exploit the potential path diversity between each mobile client and multiple access points in the infrastructure, where we use multiple paths simultaneously or switch between multiple paths (site selection) as a function of channel characteristics. Our results indicate that the proposed system can provide significant benefits over conventional single access point (single path) systems.