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Metropolitan Area WDM Networks: A Survey on Ring Systems,” June 2003, submitted, available at http://www.fulton.asu.edu/˜mre (0)

by M Herzog, M Maier, M Reisslein
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WDM networks: Performance comparison of slotted ring and AWG star

by Hyo-sik Yang, Martin Herzog, Martin Maier, Martin Reisslein - JOURNAL OF LIGHTWAVE TECHNOLOGY , 2005
"... Both WDM networks with a ring architecture and WDM networks with a star architecture have been extensively studied as solutions to the ever increasing amount of traffic in the metropolitan area. Studies typically focus on either the ring or the star and significant advances have been made in the pro ..."
Abstract - Cited by 4 (1 self) - Add to MetaCart
Both WDM networks with a ring architecture and WDM networks with a star architecture have been extensively studied as solutions to the ever increasing amount of traffic in the metropolitan area. Studies typically focus on either the ring or the star and significant advances have been made in the protocol design and performance optimization for the WDM ring and the WDM star, respectively. However, very little is known about the relative performance comparisons of ring and star networks. In this study we conduct a comprehensive comparison of a state-of-the-art WDM ring network with a state-of-the-art WDM star network. In particular, we compare time-slotted WDM ring networks (both single-fiber and dual-fiber) with tunable-transmitter and fixed-receiver (TT–FR) nodes and an AWG based single-hop star network with tunable-transmitter and tunable-receiver (TT–TR) nodes. We evaluate mean aggregate throughput, relative packet loss, and mean delay by means of simulation for Bernoulli and self-similar traffic models for unicast traffic with uniform and hot-spot traffic matrices as well as for multicast traffic. Our results quantify the fundamental performance characteristics of ring networks vs. star networks and vice versa, as well as their respective performance limiting bottlenecks, and thus provide guidance for directing future research efforts. I.
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...85287–5706, Phone: (480)965–8593, Fax: (480)965–8325, (e-mail: reisslein@asu.edu, web: http://www.fulton.asu.edu/˜mre).sTECH. REP., DEPT. OF ELECTRICAL ENG. , ARIZONA STATE UNIVERSITY, JANUARY 2004 2 =-=[3]-=- or the star topology [4], [5] and significant advances have been made in the medium access control (MAC) protocol design and performance optimization of the WDM ring and the WDM star, respectively. H...

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