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Evaluation of VoIP QoS Performance in Wireless Mesh Networks

School of Digital Technologies, Tallinn University, 10120 Tallinn, Estonia
Thomas Johann Seebeck Department of Electronic, School of Information Technologies, Tallinn University of Technology, 19086 Tallinn, Estonia
Author to whom correspondence should be addressed.
Information 2017, 8(3), 88;
Received: 13 June 2017 / Revised: 17 July 2017 / Accepted: 18 July 2017 / Published: 21 July 2017
(This article belongs to the Section Information Applications)
The main focus of this research article is the evaluation of selected voice over Internet protocol (VoIP) solutions in wireless mesh network (WMN) scenarios. While WMNs have self-healing, self-forming, and dynamic topology features, they still pose challenges for the implementation of multimedia applications such as voice in various scenarios. Therefore, various solutions to make WMN more suitable for VoIP application have been proposed in the scientific literature. In this work, we have extensively explored a set of applicable scenarios by conducting experiments by means of a network simulator. The following scenarios were selected as the most representatives for performance evaluation: first responders, flooded village, remote village, and platoon deployment. Each selected scenario has been studied under six sub-scenarios corresponding to various combinations of the IEEE 802.11g, 802.11n, 802.11s, and 802.11e standards; the G.711 and G.729 codecs; and the ad hoc on demand distance vector (AODV) and hybrid wireless mesh protocol (HWMP) routing protocols. The results in terms of quality of service (measured with the mean opinion score rating scale), supported by the analysis of delay, jitter and packet loss, show that 802.11g integration with both VoIP codecs and AODV routing protocol results in better VoIP performance as compared to most other scenarios. In case of 802.11g integration with 802.11s, VoIP performance decreases as compared to the other sub-scenarios without 802.11s. The results also show that 802.11n integration with 802.11e decreases VoIP performance in larger deployments. We conclude the paper with some recommendations in terms of combinations of those standards and protocols with a view to achieve a higher quality of service for the given scenarios. View Full-Text
Keywords: wireless network; VoIP communication; mesh; QoS; MOS; delay; jitter; packet loss wireless network; VoIP communication; mesh; QoS; MOS; delay; jitter; packet loss
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MDPI and ACS Style

Meeran, M.T.; Annus, P.; Alam, M.M.; Moullec, Y.L. Evaluation of VoIP QoS Performance in Wireless Mesh Networks. Information 2017, 8, 88.

AMA Style

Meeran MT, Annus P, Alam MM, Moullec YL. Evaluation of VoIP QoS Performance in Wireless Mesh Networks. Information. 2017; 8(3):88.

Chicago/Turabian Style

Meeran, Mohammad Tariq, Paul Annus, Muhammad Mahtab Alam, and Yannick Le Moullec. 2017. "Evaluation of VoIP QoS Performance in Wireless Mesh Networks" Information 8, no. 3: 88.

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