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Performance Modeling of Queuing Techniques for Enhance QoS Support for Uniform and Exponential VOIP based Traffic Distribution

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Author(s): B.K Mishra | S.K Singh | Kalpana Patel

Journal: International Journal of Computer Applications
ISSN 0975-8887

Volume: icwet;
Issue: 8;
Date: 2012;
Original page

Keywords: QoS-Quality of service | NGN-Next generation network | FIFO | PQ | WFQ | VOIP

ABSTRACT
In the near future there will be demand for seamless service across different types of network, so it's a significant issue of how to guarantee the quality of service (QoS) and support a variety of services. One important generalization of the Next Generation Network is, it's a queue of network. It is expected that traffic in NGN will undergo both quantitative and qualitative changes. Such networks can model problems of contention that arise when a set of resources is shared. With the rapid transformation of the Internet into a commercial infrastructure, demands for service quality have rapidly developed. This paper gives a comparative analysis of three queuing systems FIFO, PQ and WFQ with different traffic distribution. It includes constant, uniform and exponential traffic distribution for VOIP. Packet end to end delay, traffic drop and packet delay variation is evaluated through simulation. Results have been evaluated for uniform and exponential traffic distribution. Result shows WFQ has better quality comparing with other techniques in a voice based services and having minimum traffic drop. Simulation is done using OPNET.
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