Title :
Topology patterns of a community network: Guifi.net
Author :
Vega, Davide ; Cerdà-Alabern, Llorenç ; Navarro, Leandro ; Meseguer, Roc
Author_Institution :
Comput. Archit. Dept., Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
This paper presents a measurement study of the topology and its effect on usage of Guifi.net, a large-scale community network. It focuses on the main issues faced by community network and lessons to consider for its future growth in order to preserve its scalability, stability and openness. The results show the network topology as an a typical high density Scale-Free network with critical points of failure and poor gateway selection or placement. In addition we have found paths with a large number of hops i.e. large diameter of the graph, and specifically long paths between leaf nodes and web proxies. The usage analysis using a widespread web proxy service confirms that these topological properties have an impact on the user experience.
Keywords :
Internet; computer network reliability; failure analysis; graph theory; internetworking; radio networks; telecommunication network topology; Guifi.net community network; Web proxy service; failure critical points; gateway selection; high density scale-free network; large-scale community network; network topology patterns; topology measurement study; wireless mesh community network; Communities; IEEE 802.11 Standards; Mesh networks; Network topology; Routing; Topology; Wireless communication; Community network; Topology patterns; Wireless network;
Conference_Titel :
Wireless and Mobile Computing, Networking and Communications (WiMob), 2012 IEEE 8th International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4673-1429-9
DOI :
10.1109/WiMOB.2012.6379139
