Improved voice over Internet protocol for wireless devices

Roslin, Raihan Jannati and Khalifa, Othman Omran and Bhuiyan, Sharif Shah Newaj (2018) Improved voice over Internet protocol for wireless devices. In: 2018 7th International Conference on Computer and Communication Engineering (ICCCE), 19th-20th September 2018, Kuala Lumpur.

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Abstract

Voice over Internet Protocol (VoIP) becomes an attractive communications option for consumers specially for current young generations where facebook, whatsApp and other communicationssocial media in use. VoIP allows us to make telephone calls over the Internet and include signaling, controlling and transport mechanisms. However, the speech quality is impairedby packet losses, which are common on wireless links, and by high transmission delays. The aimof this paper is to present a method to improve the speech quality for voice-over-internet protocol (VoIP). Since the performance of unreliable voice transmission (Voice over IP) over wireless links is measured not by the throughput but by the perceptual speech quality. In this scheme there three main elements of VoIP are signaling protocol, audio codec and transport layer play a big role in providing the best VoIP speech quality. The quality of speech is determinedusing the Mean Opinion Score (MOS) after the values of jitter and end-to-end delay has been measured. Thus, the best couple of audio codec and signaling protocol through the quality ofthe speech quality produced.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4119/68110
Uncontrolled Keywords:	—VoIP, Codec Scheme, Audio Codec, SIP
Subjects:	T Technology > T Technology (General) > T10.5 Communication of technical information T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Prof. Dr Othman O. Khalifa
Date Deposited:	12 Dec 2018 09:03
Last Modified:	11 Jan 2019 17:10
URI:	http://irep.iium.edu.my/id/eprint/68110

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