Paper Info
Title
A Cross-Layer Optimized Error Recovery Mechanism for Real-Time Videoin Ad-Hoc Networks
Abstract
The increase in the bandwidth of wireless channels and the computing power of mobile devices increase the interest in video communications over ad-hoc wireless networks. However, the high error rate and the rapidly changing quality of the radio channels can be devastating for the transport of compressed video. In addition, the bounded playout delay for interactive video limits the effectiveness of retransmission-based error control. In this paper, we propose an error recovery mechanism for real-time video that combines forward error correction (FEC), and multi-path retransmission. Based on the sender to receiver route obtained from lower layers, as well as the video data content, the mechanism determines the allocation of error correction code, as well as the retransmission criteria. We evaluated the effectiveness of the mechanism under different network conditions. Simulation results show that the proposed hybrid error recovery mechanism maintains the video quality under different loss rates and mobility speeds, with less overhead compared to error recovery methods that depend only on fixed FEC allocation.
Year
DOI
Venue
2006
10.1109/ICPADS.2006.10
international conference on parallel and distributed systems
Keywords
Field
DocType
error recovery method,error correction,Real-Time Videoin Ad-Hoc Networks,error recovery mechanism,interactive video,Cross-Layer Optimized Error Recovery,retransmission-based error control,real-time video,video communication,proposed hybrid error recovery,error correction code,high error rate
Wireless network,Forward error correction,Wireless,Computer science,Retransmission,Word error rate,Computer network,Real-time computing,Error detection and correction,Wireless ad hoc network,Video quality
Conference
ISBN
Citations 
PageRank 
0-7695-2612-8
1
0.35
References 
Authors
5
3
Name
Order
Citations
PageRank
Ahmed Abd El Al1929.03
Tarek N. Saadawi268892.96
Myung Lee339335.69