QUALITY OF SERVICE ISSUES IN WIRELESS VOICE OVER INTERNET PROTOCOL

Oladunni Abosede Daramola

Abstract


Voice over Internet Protocol (VoIP) is a significant application of the converged network principle where the voice traffic is routed over Internet Protocol shared traffic networks. VoIP traffic was modelled over wireless network and a simulation of the traffic was transmitted over the network. E-model technique was used to analyze the traffic data and also to rate VoIP QoS parameters.  The result achieved was mapped to the Mean Opinion Scale to determine the Quality of Service of VoIP over wireless networks. The results shows that QoS in the VoIP communications is significantly impacted by these parameters and the impact varies according to the parameters and also the communication aspects selected for the VoIP traffic analysis.

Keywords: VoIP, QoS, E-Model and Mean Opinion Scale

 

 


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References


Bellalta B., Meo M., and Oliver M., (2007) VoIP Call Admission Control in WLANs in Presence of Elastic Traffic. Journal of Communications Software and Systems.

Bellalta B., (2007) Flow-level QoS guarantees in IEEE 802.11e EDCA-based WLANs. PhD Thesis, Universitat Pompeu Fabra.

Clark A. D., (2003) Modeling the Effects of Burst Packet Loss and Recency on Subjective Voice Quality. IPtel Workshop.

Collins D.E., ( 2003) Carrier Grade Voice over IP. McGraw-Hill Professional.

END TO END QOS: “Challenges and Practical Solutions.” (http://www.riverstonenet.com/pdf/qos.pdf). Date Accessed (5 May, 2011).

Held,Gilbert. “Emerging Technology: Reducing Voice over VoIP Latency.” URL:http://www.networkmagazine.com/article/NMG20000710S0012. Date accessed (21 February 2011).

Hoene C., Carreras I., Wolisz A., (2001), Voice over IP: Improving the Quality over Wireless LAN by Adopting a Booster Mechanism – An Experiment Approach. Proc. SPIE - Voice over IP (VoIP) Technology, pp. 157- Denver, Colorado, USA.

ITU-T (1999) Recommendation G.109: Definition of categories of speech transmission quality.

ITU-T (2003a) ITU-T Recommendation G.114: One-way transmission time.

ITU-T (2003b) ITU-T Recommendation P.800.1: Mean Opinion Score (MOS) Terminology.

ITU-T (2004) E-Model Tutorial.

ITU-T (2006) ITU-T Recommendation G.107: The E-model, a computational model for use in transmission planning.

Kuhn M., “UNDERSTANDING VOICE OVER IP” URL:http//www.compassconsulting.com/articles/voipintro.html. Date accessed (7 April. 2011).

Paxson V, “Measurements and Analysis of End-to-End Internet Dynamics,” Ph.D. dissertation, University of California, Berkeley, 1997

PROTOCOLS (2008) The H.323 Protocols Suite. IN CELLULAR-PROTOCOLS.GIF (Ed.). Protocols.com.

Rahul C. Vaidya and S.S. Kulkarni (2012) “Voice over IP Mobile Telephony Using WIFI“ International Journal of Scientific & Engineering Research Volume 3, Issue 12, December2012 ISSN 2229-5518

Sanneck H, Tuong N (2003), Selective Packet Prioritization for Wireless Voice over IP, 4th Int Sym Wireless Personal Multimedia Communication, Denmark

SCHULZRINNE, H. (2003) RTP: A Transport Protocol for Real-Time Applications (RFC3550).

Shenker, S., Patridge,C., Guerin, R. (1997) “ Specification of Guaranteed Quality of Service.”. URL:ftp//ftp.rfc-editor.org/in-notes/rfc2212.txt Date accessed (14 March 2011).




DOI: https://doi.org/10.23956/ijarcsse.v7i10.386

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