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Proceedings Paper

Increasing the network performance using multiple tables based QoS routing with load balance
Author(s): Hedia Kochkar; Takeshi Ikenaga; Kenji Kawahara; Yuji Oie
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Paper Abstract

With the increasing diversity of network applications, it has become crucial for the Internet to offer various services. In the Internet a simple shortest path routing algorithm is employed, however, it may not be adequate in networks that provide Quality of Service (QoS) guarantees to applications such as real time applications. Since the goal of the QoS routing is to find a path that satisfies the given requirements and may increase the global network resource utilization, an advanced QoS-aware routing technology in the current IP networks is needed to realize next generation ubiquitous networks. In this paper, we propose a distributed link state QoS routing with multiple routing tables obtained upon different link costs to effectively accommodate multi-class traffic such as real time QoS traffic and best-effort traffic. Selecting a path for QoS traffic can have an effect on overall the network. Therefore, how much QoS traffic has to be routed on the shortest path will have an impact on the behavior of Best Effort Traffic. For that we used a dynamic threshold based on network state to split QoS traffic between alternatives path. The significance of the proposed scheme lies in reducing the packet loss probability of the QoS traffic. This scheme can prevent the QoS traffic from concentrating on some links and allow at the same time to improve the best-effort traffic throughput. We investigate the characteristics of the proposed multi-class routing schemes by computer simulations. We have found that both packet loss of QoS traffic and the throughput of Best-Effort can be improved by using the proposed scheme.

Paper Details

Date Published: 24 October 2005
PDF: 9 pages
Proc. SPIE 6011, Performance, Quality of Service, and Control of Next-Generation Communication and Sensor Networks III, 60110F (24 October 2005); doi: 10.1117/12.631010
Show Author Affiliations
Hedia Kochkar, Kyushu Institute of Technology (Japan)
Takeshi Ikenaga, Kyushu Institute of Technology (Japan)
Kenji Kawahara, Kyushu Institute of Technology (Japan)
Yuji Oie, Kyushu Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 6011:
Performance, Quality of Service, and Control of Next-Generation Communication and Sensor Networks III
Mohammed Atiquzzaman; Sergey I. Balandin, Editor(s)

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