Enhanced Performance of Packet Transmission over VoIP Network

Author

Nisar, Kashif ; Said, Abas Md ; Hasbullah, Halabi

Author_Institution

Dept. of Comput. & Inf. Sci., Univ. Teknol. PETRONAS, Tronoh, Malaysia

fYear

2010

fDate

20-23 April 2010

Firstpage

485

Lastpage

490

Abstract

Voice over IP (VoIP) supports us to make free of charge or very cheap soft-phone and hard-phone calls locally and globally. VoIP is moving on Wireless Local Area Networks (WLANs) based on IEEE 802.11 standards. For audio speech quality in packet switch applications, the main concerns are end to end delay and packet loss. This paper presents a VoIP-Telephony deployment model using Opnet Simulator. We have configured an experimental setup and analyzed various methods to improve voice quality. Experimental results using IEEE 802.11a/b were analyzed for voice traffic. Experimental results with varying packet loss using Jperf and distributed coordination function (DCF-Voice) presented.

Keywords

Internet telephony; wireless LAN; IEEE 802.11 standards; Opnet simulator; VoIP network; VoIP-telephony deployment model; audio speech quality; packet transmission; voice over IP; wireless local area networks; Delay; Internet telephony; Personal digital assistants; Propagation losses; Protocols; Quality of service; Speech analysis; Switches; Telephone sets; Wireless LAN; DCF-Voice; Enhanced Performance; VoIP; WLAN; packet transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Information Networking and Applications Workshops (WAINA), 2010 IEEE 24th International Conference on

Conference_Location

Perth, WA

Print_ISBN

978-1-4244-6701-3

Type

conf

DOI

10.1109/WAINA.2010.76

Filename

5480760