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A delay-constrained least-cost path routing protocol and the synthesis method

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3 Author(s)
Ishida, K. ; Dept. of Comput. Eng., Hiroshima City Univ., Japan ; Amano, K. ; Kannari, N.

Real-time communication services will be one of the most promising future applications in both the B-ISDN and Internet. In addition, real-time traffic usually utilizes a significant amount of resources while traversing the network. Thus there is the need for routing mechanisms which are able to satisfy requirements of both real-time traffic and efficient management of network resources. Firstly we discuss an issue of routing of real-time traffic subject to each end-to-end delay constraint and a path cost. Then, we describe a key concept which is taken into consideration of the requirements simultaneously. Based on the requirements, a delay constrained least-cost path problem is formulated. Since the problem is NP-hard, a heuristic method is proposed to solve the problem. The heuristic method can always find a delay-constrained path between a source node and a destination node, if there is such a path. Based on the heuristic method, an outline of the synthesis method for the delay-constrained least-cost path routing protocol is also presented

Published in:

Real-Time Computing Systems and Applications, 1998. Proceedings. Fifth International Conference on

Date of Conference:

27-29 Oct 1998

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