IEEE Transactions on Multimedia
Analysis of video transmission over lossy channels
IEEE Journal on Selected Areas in Communications
A heuristic cross-layer mechanism for real-time traffic over IEEE 802.16 networks
International Journal of Network Management
Proceedings of the 3rd ACM workshop on Wireless multimedia networking and performance modeling
EURASIP Journal on Wireless Communications and Networking - Multimedia over Wireless Networks
Towards a declarative framework for managing application and network adaptations
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Context-aware receiver-driven retransmission control in wireless local area networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Real-Time video streaming in multi-hop wireless static ad hoc networks
ALGOSENSORS'11 Proceedings of the 7th international conference on Algorithms for Sensor Systems, Wireless Ad Hoc Networks and Autonomous Mobile Entities
LossEstimate: Distributed failure estimation in wireless networks
Journal of Systems and Software
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Real-time streaming media over wireless networks is a challenging proposition due to the characteristics of video data and wireless channels. In this paper, we propose a set of cross-layer techniques for adaptive real-time video streaming over wireless networks. The adaptation is done with respect to both channel and data. The proposed novel packetization scheme constructs the application layer packet in such a way that it is decomposed exactly into an integer number of equal-sized radio link protocol (RLP) packets. FEC codes are applied within an application packet at the RLP packet level rather than across different application packets and thus reduce delay at the receiver. A priority-based ARQ, together with a scheduling algorithm, is applied at the application layer to retransmit only the corrupted RLP packets within an application layer packet. Our approach combines the flexibility and programmability of application layer adaptations, with low delay and bandwidth efficiency of link layer techniques. Socket-level simulations are presented to verify the effectiveness of our approach.