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IEICE TRANSACTIONS on Communications

Integration of Scheduling Real-Time Traffic and Cell Loss Control for ATM Networks

Chuang LIN, Lijie SHENG

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Summary :

In this paper, new integrated schemes of scheduling real-time traffic and cell loss control in high speed ATM networks are proposed for multiple priorities based on variable queue length thresholds for scheduling and the Partial Buffer Sharing policy for cell loss control. In our schemes, the queues for buffering arriving cells can be constructed in two ways: one individual queue for each user connection, or one physical queue for all user connections. The proposed schemes are considered to provide guaranteed QoS for each connection and cell sequence integrity for virtual channel/path characteristics. Moreover, these new schemes are quite flexible and can realize different scheduling algorithms. This paper also provides the Stochastic Petri Net models of these integrated schemes and an approximate analysis technique, which significantly reduces the complexity of the model solution and can be applied to real ATM switch models. From the numerical results, we can see that our schemes outperform those well-known schemes such as the head-of-line (HOL) priority control and the queue length threshold (QLT) policy.

Publication
IEICE TRANSACTIONS on Communications Vol.E85-B No.4 pp.778-795
Publication Date
2002/04/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Network

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