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Approximate analysis of single and multiple ring networks

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3 Author(s)
Bhuyan, L.N. ; Center for Adv. Comput. Studies, Univ. of Southwestern Louisiana, Lafayette, LA, USA ; Ghosal, D. ; Quing Yang

Asynchronous packet-switched interconnection networks with decentralized control are very appropriate for multiprocessing and data-flow architectures. The authors present performance models of single- and multiple-ring networks based on token-ring, slotted-ring, and register-insertion-ring protocols. The multiple ring networks have the advantage of being reliable, expandable, and cost effective. An approximate and uniform analysis, based on the gate M/G/1 queuing model, has been developed to evaluate the performance of both existing single-ring networks and the proposed multiple-ring networks. Approximations are good for low and medium load. The analyses are based on symmetric ring structure with nonexhaustive service policy and infinite queue length at each station. They essentially involve modeling of queues with single- and multiple-walking servers. The results obtained from the analytical models are compared to those obtained from simulation

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Computers, IEEE Transactions on  (Volume:38 ,  Issue: 7 )