Analyzing the Performance of Voice over Internet Protocol in a 3G Network

Sulaiman, Norakmar Arbain; Carrasco, R.A.; Chester, Graeme

doi:10.1109/innovations.2006.301922

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…In the calculation, the probability of active state P(α) was used to consider the traffic behaviour which represents the actual arrival rate. The probability of the arrival rate of n packets can be represented by [3]:…”

Section: Simulation Modelmentioning

confidence: 99%

“…However as the traffic increase, the delay increases drastically. 5 shows the end-to-end delay of the simulation model with the theoretical model as in [3]. As the traffic increase, the delay maintains at a certain level and at a certain point it increases drastically.…”

Section: A End-to-end Delaymentioning

confidence: 99%

“…As VoIP is becoming popular, the concern for security increases too. The quality of voice is affected by the packet size and service capacity as analysed in [3]. Moreover, the network traffic and interference could cause delay and jitter.…”

Section: Introductionmentioning

confidence: 99%

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Impact of security on voice quality in 3G networks

Sulaiman

Carrasco

Chester

2008

2008 3rd IEEE Conference on Industrial Electronics and Applications

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The aim of this paper is to study the impact of security protocols on the quality of Voice over Internet Protocol (VoIP) in a third generation (3G) network. Long distance calls are expensive and the potential of cost saving is the most attractive feature in VoIP. In VoIP, voice traffic travels using the Internet protocol instead of using a conventional line. Assuring quality of service (QoS) is one of primary issues in an IP based application. Hence, it is essential to evaluate the performance to ensure that the quality is acceptable to the users. This paper discusses the security protocol at the IP layer. It also presents the results of system simulations which provide some insights into the conditions and parameters involved. The results indicate that a security algorithm has a great impact on the overall performance of a voice service which may degrade the voice quality to an unacceptable level.

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Section: Simulation Modelmentioning

confidence: 99%

Section: A End-to-end Delaymentioning

confidence: 99%

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Impact of security on voice quality in 3G networks

Sulaiman

Carrasco

Chester

2008

2008 3rd IEEE Conference on Industrial Electronics and Applications

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“…Similarly, the impact of packet arrival rate on the delay was analysed in [6]. In [7], an experimental measurement of VoIP was presented focusing on the performance of VoIP in interworking systems.…”

Section: Abstract-performanc Evaluation; Traffic Mix; Voip; 3gmentioning

confidence: 99%

“…The packets are serviced at constant size. Let (µ) represents the average service rate and it is calculated based on the data rate as well as the average file size [6]. The traffic intensity (ρ) can be defined as ρ=λ/µ.…”

mentioning

confidence: 99%

Performance Evaluation of Traffic Mix in IP Based Networks

Masanori¹,

Kawano

Kinoshita

et al. 2007

32nd IEEE Conference on Local Computer Networks (LCN 2007)

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With the convergence of mobile telephony and the Internet, it seems that future telephony data will be transferred on VoIP datagram. Mobility will affect the overall system performance especially for voice communication.Thus, maintaining the quality of voice is necessary. It is important to guarantee that the end-to-end delay must be kept at a certain level. This paper investigates the performance of voice in traffic mix environment. Handover which is based on incoming traffics may cause the system to be unbalanced. A load balancing scheme was deployed to optimise the system capacity and to improve performance. The throughput, end-to-end delay and packet loss are used in measuring the performance. The results show that a better performance can be achieved by deploying this scheme. In addition, the system is able to support more number of connected users. Keywords-performanc evaluation; traffic mix; VoIP; 3GI. BACKGROUND Traditionally, voice communication has been carried over dedicated telephone networks.In recent mobile communications, the networks have been designed so that all services would use common facilities which result in efficiency and cost saving. The integration of voice as a component of multimedia IP based network allows a variety of services such as video, voice and data on a single infrastructure. Hence, traffic management is an issue as it involves managing real time and non-real time traffic [1].The third generation (3G) network offers the normal telephony service and high speed data access. The limited upstream capability of 3G services is seen as a potential limit on Voice over Internet Protocol (VoIP) over 3G data access. It can only deliver up to 64kbps upstream which is however adequate for VoIP services. Applying VoIP with mobile network involves technical issues as less attention has been paid to the application of VoIP in a mobile environment [2].An overview of VoIP and its transmission over mobile radio links with available packet-based access was provided in [3]. It described the capabilities that a radio network must have to provide a flexible packet switched voice service. In [4], the authors introduced the basic concept of all IP networks and the overview of the architecture. In addition, technical issues and challenges that need to be addressed were also included.VoIP performance has been studied in [5] by analyzing delay and packet loss. Similarly, the impact of packet arrival rate on the delay was analysed in [6]. In [7], an experimental measurement of VoIP was presented focusing on the performance of VoIP in interworking systems.A scheme for different error and delay conditions was proposed in [8]. It was claimed that the scheme is efficient and robust for VoIP transmission in cellular environment. A scheduler that did not differentiate types of services was deployed in [9] to evaluate the performance aspects of streaming applications in a mixed streaming and best effort scenario.It was reported that reasonable streaming performance can be achieved by using fair scheduler. II. ...

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