Data networks
A System Architecture for Managing Mobile Streaming Media Services
ICDCSW '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Proceedings of the 9th annual international conference on Mobile computing and networking
Multipath Unicast and Multicast Video Communication over Wireless Ad Hoc Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Wireless mesh networks: a survey
Computer Networks and ISDN Systems
Using redundancy to cope with failures in a delay tolerant network
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
Cross-layer design of ad hoc networks for real-time video streaming
IEEE Wireless Communications
IEEE Transactions on Multimedia
Adaptive cross-layer protection strategies for robust scalable video transmission over 802.11 WLANs
IEEE Journal on Selected Areas in Communications
Cross-Layer Optimized Video Streaming Over Wireless Multihop Mesh Networks
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Circuits and Systems for Video Technology
Application-centric routing for video streaming over multi-hop wireless networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Packet-level transmission distortion analysis for video streaming over mesh networks
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Proceedings of the 2011 ACM Symposium on Research in Applied Computation
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Multi-hop networks provide a flexible infrastructure that is based on a mixture of existing access points and stations interconnected via wireless links. These networks present some unique challenges for video streaming applications due to the inherent infrastructure unreliability. In this paper, we address the problem of robust video streaming in multi-hop networks by relying on delay-constrained and distortion-aware scheduling, path diversity and retransmission of important video packets over multiple links to maximize the received video quality at the destination node. To provide an analytical study of this streaming problem, we focus on an elementary multi-hop network topology that enables path-diversity, which we term "elementary cell". Our analysis is considering several cross-layer parameters at the physical and medium access control (MAC) layers, as well as application-layer parameters such as the expected distortion-reduction of each video packet and the packet scheduling via an overlay network infrastructure. In addition, we study the optimal deployment of path diversity in order to cope with link failures. The analysis is validated in each case by simulation results with the elementary cell topology, as well as with a larger multi-hop network topology. Based on the derived results, we are able to establish the benefits of using path-diversity in video streaming over multi-hop networks, as well as identify the cases where path diversity does not lead to performance improvements.