Principles of mobile communication (2nd ed.)
Principles of mobile communication (2nd ed.)
Analysis of a campus-wide wireless network
Proceedings of the 8th annual international conference on Mobile computing and networking
A high-throughput path metric for multi-hop wireless routing
Proceedings of the 9th 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
The changing usage of a mature campus-wide wireless network
Proceedings of the 10th annual international conference on Mobile computing and networking
ExOR: opportunistic multi-hop routing for wireless networks
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
Proceedings of the 11th annual international conference on Mobile computing and networking
Measurement driven deployment of a two-tier urban mesh access network
Proceedings of the 4th international conference on Mobile systems, applications and services
XORs in the air: practical wireless network coding
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Long-distance 802.11b links: performance measurements and experience
Proceedings of the 12th annual international conference on Mobile computing and networking
A Routing Metric for Load-Balancing in Wireless Mesh Networks
AINAW '07 Proceedings of the 21st International Conference on Advanced Information Networking and Applications Workshops - Volume 02
Exploiting partially overlapping channels in wireless networks: turning a peril into an advantage
IMC '05 Proceedings of the 5th ACM SIGCOMM conference on Internet Measurement
Trading structure for randomness in wireless opportunistic routing
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Understanding wifi-based connectivity from moving vehicles
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
SIGMETRICS '08 Proceedings of the 2008 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Context-based routing: techniques, applications and experience
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
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
Analysis of a mixed-use urban wifi network: when metropolitan becomes neapolitan
Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Usage patterns in an urban WiFi network
IEEE/ACM Transactions on Networking (TON)
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Comparing metro-area cellular and WiFi performance: extended abstract
Proceedings of the 12th ACM SIGMETRICS/PERFORMANCE joint international conference on Measurement and Modeling of Computer Systems
Cell vs. WiFi: on the performance of metro area mobile connections
Proceedings of the 2012 ACM conference on Internet measurement conference
Experimental evaluation of a wireless community mesh network
Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems
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We present a measurement study of a large-scale urban WiFi mesh network consisting of more than 250 Mesh Access Points (MAPs), with paying customers that use it for Internet access. Our study, involved collecting multi-modal data, e.g., through continuous gathering of SNMP logs, syslogs, passive traffic capture, and limited active measurements in different parts of the city. Our study is split into four components - planning and deployment of the mesh, success of mesh routing techniques, likely experience of users, and characterization of how the mesh is utilized. During our data collection process that spanned 8 months, the network changed many times due to hardware and software upgrades. Hence to present a consistent view of the network, the core dataset used in this paper comes from a two week excerpt of our dataset. This part of the dataset had more than 1.7 million SNMP log entries (from 224 MAPs) and more than 100 hours of active measurements. The scale of the study allowed us to make many important observations that are critical in planning and using WiFi meshes as an Internet access technology. For example, our study indicates that the last hop 2.4GHz wireless link between the mesh and the client is the major bottleneck in client performance. Further we observe that deploying the mesh access points on utility poles results in performance degradation for indoor clients that receive poor signal from the access points.