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Virtual Output Queue Structure for Fair Uni and Multicasting in Metro WDM Network  

Yang, Hyo-Sik (Sejong University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.45, no.2, 2008 , pp. 55-60 More about this Journal
Abstract
Packet-switched wavelength division multiplexing (WDM) ring networks have been extensively studied as solutions to the increasing amount of traffic in metropolitan area networks, which is widely expected to be a mix of unicast and multicast traffic. In this paper we study the fairness between unicasting and multicasting in slotted packet-switched WDM ring networks that employ a tunable transmitter and fixed tuned receiver at each node and a posteriori buffer selection. We find that single-step longest queue selection algorithm generally results in unfairness between unicasting and multicasting or a lilted relative priority for multicast vs. unicast traffic. We present the various virtual output queue structures and their performance.
Keywords
Fairness Control; Multicasting; Unicasting; Virtual Output Queue; Wavelength Division Multiplexing;
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