Title: Comparative analysis of routing protocols for VoIP in a Wireless Mesh Backbone: a user perspective

Authors: Saulo Queiroz, Arlen Nascimento, Edjair Mota, Leandro S.G. Carvalho, Edson Nascimento

Addresses: Computer Networks and Multimedia Group, Department of Computer Science, Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil. ' Computer Networks and Multimedia Group, Department of Computer Science, Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil. ' Computer Networks and Multimedia Group, Department of Computer Science, Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil. ' Computer Networks and Multimedia Group, Department of Computer Science, Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil. ' Computer Networks and Multimedia Group, Department of Computer Science, Federal University of Amazonas (UFAM), Manaus, Amazonas, Brazil

Abstract: In this work we select AODV, OLSR and HWMP routing protocols and focus on how they can affect the Quality of user Experience (QoE) with respect to VoIP on a wireless backbone. We calculated QoE by using a reviewed version of the E-model. Since that parameter is strongly correlated with some stochastic network variables it presents stochastic behaviour too. So, we discuss important issues needed to estimate QoE based parameters in a trusty way. Results showed that the average QoE kept acceptable only under AODV routing as the number of VoIP traffic was increased in the network.

Keywords: WMN; wireless mesh networks; MRP; mesh routing protocols; QoE; quality of user experience; VoIP; voice over IP; internet protocol; wireless networks.

DOI: 10.1504/IJIPT.2008.023770

International Journal of Internet Protocol Technology, 2008 Vol.3 No.4, pp.216 - 223

Available online: 10 Mar 2009 *

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