A high-throughput path metric for multi-hop wireless routing
Proceedings of the 9th annual international conference on Mobile computing and networking
PAC: Perceptive Admission Control for Mobile Wireless Networks
QSHINE '04 Proceedings of the First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks
Contention-Aware Admission Control for Ad Hoc Networks
IEEE Transactions on Mobile Computing
Wireless mesh networks: a survey
Computer Networks and ISDN Systems
An experimental study of multimedia traffic performance in mesh networks
WiTMeMo '05 Papers presented at the 2005 workshop on Wireless traffic measurements and modeling
Architecture and evaluation of an unplanned 802.11b mesh network
Proceedings of the 11th annual international conference on Mobile computing and networking
Effect of payload length variation and retransmissions on multimedia in 802.11a WLANs
Proceedings of the 2006 international conference on Wireless communications and mobile computing
XORs in the air: practical wireless network coding
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
A fragment-based retransmission scheme with QoS considerations for wireless networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
ER: efficient retransmission scheme for wireless LANs
CoNEXT '07 Proceedings of the 2007 ACM CoNEXT conference
Assessment of urban-scale wireless networks with a small number of measurements
Proceedings of the 14th ACM international conference on Mobile computing and networking
Analysis of a mixed-use urban wifi network: when metropolitan becomes neapolitan
Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Performance evaluation of video streaming in multihop wireless mesh networks
Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video
Cross-Layer Optimized Video Streaming Over Wireless Multihop Mesh Networks
IEEE Journal on Selected Areas in Communications
Metrics for evaluating video streaming quality in lossy IEEE 802.11 wireless networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
An opportunistic virtual MISO (OVM) protocol for multi-hop wireless networks
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
MAC layer support for delay tolerant video transport in disruptive MANETs
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part I
A leader-based reliable multicast MAC protocol for MPEG-4 traffic
IDCS'12 Proceedings of the 5th international conference on Internet and Distributed Computing Systems
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Link-layer retransmission is a feature of IEEE 802.11 standard protocol that aims to increase the reliability of data communications. However, when successive retransmissions fail, they add to the traffic congestion, raise the collision probability, and increase the end-to-end delay. Using our 4-hop wireless mesh network testbed, we evaluate the impact of link-layer retransmissions on the performance of video streaming in wireless multi-hop environment. Our experimental results show that when the traffic load is near or exceeds the network capacity, retransmissions cause erratic video quality and increase the end-to-end delay tremendously. When the best-effort traffic coexists, increasing the number of retransmissions degrades the goodput of best-effort traffic and increases the end-to-end delay of video streaming. Retransmissions add reliability and increase the video streaming quality only when the traffic volume is far below the network capacity limit.