A rate-adaptive MAC protocol for multi-Hop wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Measurement-based characterization of 802.11 in a hotspot setting
Proceedings of the 2005 ACM SIGCOMM workshop on Experimental approaches to wireless network design and analysis
Improving loss resilience with multi-radio diversity in wireless networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Robust rate adaptation for 802.11 wireless networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Analysis of multipath Routing-Part I: the effect on the packet delivery ratio
IEEE Transactions on Wireless Communications
ATCP: TCP for mobile ad hoc networks
IEEE Journal on Selected Areas in Communications
Fast track article: Comparing simulation tools and experimental testbeds for wireless mesh networks
Pervasive and Mobile Computing
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Despite the increasing number of wireless mesh network deployments and research, there is a lack of understanding on how robust these networks are in practice. In this paper, we perform a systematic experimental study to investigate the impacts of different factors on the unreliability of a mesh network and the sources causing such unreliability.We use packet loss rate as a metric for defining reliability. The factors that we studied include traffic load, number of hops and flows, transmission rates, maximum retransmission limits and the RTS/CTS mechanism. Our results are based on measurements performed on our realworld mesh network testbed. In addition to performing the experiments on multiple hops, we include the results of one hop experiments for comparison. In identifying the sources of packet loss, we developed a tool, FlowPaC, to collect flow-based statistics at different points in the system to understand the effects of the MAC layer parameters and the traffic attributes. We also explore the potential remedies for the system configuration and thereby improve the reliability of wireless mesh networks.