A measurement study of a commercial-grade urban wifi mesh Export

@inproceedings{citeulike:3805886, abstract = {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.}, address = {New York, NY, USA}, author = {Brik, Vladimir and Rayanchu, Shravan and Saha, Sharad and Sen, Sayandeep and Shrivastava, Vivek and Banerjee, Suman}, booktitle = {IMC '08: Proceedings of the 8th ACM SIGCOMM conference on Internet measurement}, citeulike-article-id = {3805886}, citeulike-linkout-0 = {http://portal.acm.org/citation.cfm?id=1452520.1452534}, citeulike-linkout-1 = {http://dx.doi.org/10.1145/1452520.1452534}, doi = {10.1145/1452520.1452534}, isbn = {978-1-60558-334-1}, keywords = {250-map, access, access-point, accesspoint, active-capture, ap, capture, commercial, commercial-grade, empirical, grade, large, large-wmn, map, measurement, mesh, mesh-access-point, mesh-network, monitoring, network, passive, passive-traffic-capture, point, snmp, traffic, traffic-capture, wi-fi, wifi, wireless, wireless-mesh, wireless-mesh-network, wireless-network, wmn}, location = {Vouliagmeni, Greece}, pages = {111--124}, posted-at = {2009-06-24 18:25:25}, priority = {5}, publisher = {ACM}, title = {A measurement study of a commercial-grade urban wifi mesh}, url = {http://dx.doi.org/10.1145/1452520.1452534}, year = {2008} }

TY - CONF ID - citeulike:3805886 L3 - citeulike-article-id:3805886 N2 - 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. CY - Vouliagmeni, Greece SN - 978-1-60558-334-1 AD - New York, NY, USA EP - 124 TI - A measurement study of a commercial-grade urban wifi mesh PB - ACM T2 - IMC '08: Proceedings of the 8th ACM SIGCOMM conference on Internet measurement SP - 111 KW - 250-map KW - access KW - access-point KW - accesspoint KW - active-capture KW - ap KW - capture KW - commercial KW - commercial-grade KW - empirical KW - grade KW - large KW - large-wmn KW - map KW - measurement KW - mesh KW - mesh-access-point KW - mesh-network KW - monitoring KW - network KW - passive KW - passive-traffic-capture KW - point KW - snmp KW - traffic KW - traffic-capture KW - wi-fi KW - wifi KW - wireless KW - wireless-mesh KW - wireless-mesh-network KW - wireless-network KW - wmn AU - Brik, Vladimir AU - Rayanchu, Shravan AU - Saha, Sharad AU - Sen, Sayandeep AU - Shrivastava, Vivek AU - Banerjee, Suman PY - 2008/// UR - http://dx.doi.org/10.1145/1452520.1452534 ER -