Performance Evaluation of Voice over IP over WiMAX

AbstractVoice over IP (VoIP) wastes a valuable amount of bandwidth because of its large packet header size compared to its small packet payload. The main objective of this paper is to reduce the amount of this wasted bandwidth, by proposing a new packets coalescence method, called Payload Shrinking and Packets Coalesce (PS-PC). The proposed PS-PC method reduces the amount of the wasted bandwidth by i) coalesces a group of VoIP packets in one header instead of a separate header to each packet and ii) shrinks the VoIP packet payload to a smaller one based on a certain algorithm. The proposed PS-PC method is deployed at the sender side VoIP gateway that represents an exit point to a myriad number of simultaneous VoIP calls. The performance evaluation showed better bandwidth usage when deploying the proposed PS-PC method with ITTP protocol in comparison to the traditional ITTP protocol without the PS-PC method.

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Implementation and Performance Evaluation of a Differentiated Services Test-Bed for Voice over IP Support

Lecture Notes in Computer Science - Evolutionary Trends of the Internet ◽

10.1007/3-540-45400-4_40 ◽

2001 ◽

pp. 627-641

Author(s):

Romano Fantacci ◽

Gianluca Vannuccini ◽

Alessandro Mannelli ◽

Luca Pancani

Keyword(s):

Performance Evaluation ◽

Voice Over Ip ◽

Differentiated Services ◽

Test Bed ◽

And Performance

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Performance Evaluation of HSDPA Mobility for Voice Over IP

2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring ◽

10.1109/vetecs.2007.176 ◽

2007 ◽

Cited By ~ 5

Author(s):

Stefan Wager ◽

Kristofer Sandlund

Keyword(s):

Performance Evaluation ◽

Voice Over Ip

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Contracting VoIP Packet Payload Down to Zero

Cybernetics and Information Technologies ◽

10.2478/cait-2021-0010 ◽

2021 ◽

Vol 21 (1) ◽

pp. 137-150

Author(s):

Mosleh M. Abualhaj ◽

Mayy M. Al-Tahrawi ◽

Mahran Al-Zyoud

Keyword(s):

Performance Evaluation ◽

Main Idea ◽

Voice Over Ip ◽

Primary Reason ◽

Fundamental Issue ◽

Network Bandwidth ◽

Ip Network ◽

Packet Header ◽

Effective Use ◽

The Voice

Abstract The inefficient use of the IP network bandwidth is a fundamental issue that restricts the exponential spreading of Voice over IP (VoIP). The primary reason for this is the big header size of the VoIP packet. In this paper, we propose a method, called Short Voice Frame (SVF), that addresses the big header size of the VoIP packet. The main idea of the SVF method is to make effective use of the VoIP packet header fields that are unneeded to the VoIP technology. In particular, these fields will be used for temporarily buffering the voice frame (VoIP packet payload) data. This will make the VoIP packet payload short or even zero in some cases. The performance evaluation of the proposed SVF method showed that the use of the IP network bandwidth has improved by up to 28.3% when using the G.723.1 codec.

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