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2005
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Video Streaming Over 802.11 WLAN with Content-Aware Adaptive Retry

10 years 4 months ago
Video Streaming Over 802.11 WLAN with Content-Aware Adaptive Retry
Robust video streaming over error-prone wireless LANs (WLANs) poses many challenges. In this paper, we propose a timestamp-based content-aware adaptive retry (CAR) mechanism for MPEG video streaming over 802.11 WLANs, where the MAC dynamically determines whether to send or discard a packet based on its retransmission deadline. The retransmission deadline is assigned to each packet according to its temporal relationship and error propagation characteristics with respect to other video packets in the same GOP. The proposed scheme avoids late packets by eliminating the impact of random backoff deference and co-channel interference with proper initial delay introduced at the receiver. Simulation results show CAR significantly improves video quality and saves channel bandwidth.
Mei-Hsuan Lu, Peter Steenkiste, Tsuhan Chen
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where ICMCS
Authors Mei-Hsuan Lu, Peter Steenkiste, Tsuhan Chen
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