DocumentCode :
3276852
Title :
Packet Scheduling for Video Streaming over Wireless with Content-Aware Packet Retry Limit
Author :
Chen, Chih-Ming ; Lin, Chia-Wen ; Chen, Yung-Chang
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu
fYear :
2006
fDate :
3-6 Oct. 2006
Firstpage :
409
Lastpage :
414
Abstract :
In this paper, we propose a content-aware retry limit adaptation scheme for video streaming over IEEE 802.11 wireless LANs (WLANs). Video packets of different importance are unequally protected with different retry limits at the MAC layer. The loss impact of each packet is estimated to guide the selection of its retry limit. More retry numbers are allocated to packets of higher loss impact to achieve unequal error protection. Our scheme also analyzes the backoff time for each retry and then takes into account the estimated backoff time for retransmission scheduling. Experimental results show that our adaptation scheme can effectively mitigate the error propagation due to packet loss and assure the on-time arrival of packets for presentation, thereby improving video quality significantly
Keywords :
access protocols; scheduling; video streaming; wireless LAN; IEEE 802.11 wireless LAN; MAC layer; adaptation scheme; backoff time estimation; content-aware packet retry limit; error propagation; medium access control; packet scheduling; retransmission scheduling; unequal error protection; video streaming; Automatic repeat request; Delay effects; Error correction; Forward error correction; Protection; Scheduling algorithm; Streaming media; Telecommunications; Wireless LAN; Wireless networks; error control; packet retransmission; packet scheduling; video streaming; wireless video;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia Signal Processing, 2006 IEEE 8th Workshop on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-9751-7
Electronic_ISBN :
0-7803-9752-5
Type :
conf
DOI :
10.1109/MMSP.2006.285341
Filename :
4064591
Link To Document :
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