Can the current generation of wireless mesh networks compete with cellular voice?

Authors:
Andres Arjona;Cedric Westphal;Jukka Manner;Antti Ylä-Jääski;Sami Takala
Affiliations:
Nokia Siemens Networks, Linnoitustie 6, 02600 Espoo, Finland;DoCoMo USA Labs, 3240 Hillview ave., Palo Alto, CA94304, USA;Helsinki University of Technology, P.O. Box 5400, FIN-02015 HUT, Finland;Helsinki University of Technology, P.O. Box 5400, FIN-02015 HUT, Finland;Nokia Siemens Networks, Linnoitustie 6, 02600 Espoo, Finland
Venue:
Computer Communications
Year:
2008

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Abstract

Wireless mesh networks are being deployed to provide broadband wireless connectivity to city-wide hotspots. The typical architecture in these deployments thus far is a single-radio architecture: mesh nodes carry only one radio, which is used both to receive the traffic from the clients and to relay this traffic through the mesh to the wired Internet gateway.In this paper, we study the performance of a representative single-radio mesh network both in a live setup and in a laboratory environment. We characterize the performance of different applications (e.g. VoIP), and study some key challenges of mesh networks such as the fairness in bandwidth allocation and hidden node terminal. Finally, we compare the results of the study with traditional cellular networks, and discuss various options to enhance the performance of wireless mesh networks in the future.