Efficient Scheduling Algorithms for Real-Time Service on WDM Optical Networks

被引:0
作者
M. Ma
B. Hamidzadeh
M. Hamdi
机构
[1] Hong Kong University of Science and Technology,Department of Computer Science
来源
Photonic Network Communication | 1999年 / 1卷
关键词
optical networks; Wavelength-Division-Multiplexing (WDM); real-time scheduling; multiple-access protocols;
D O I
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中图分类号
学科分类号
摘要
One of the important issues in the design of future generation high-speed networks is the provision of real-time services to different types of traffic with various time constraints. In this paper we study the problem of providing real-time service to hard and soft real-time messages in Wavelength-Division-Multiplexing (WDM) optical networks. We propose a set of scheduling algorithms which prioritize and manage message transmissions in single-hop WDM passive star networks based on specific message time constraints. In particular, we develop time-based priority schemes for scheduling message transmissions in order to increase the real-time performance of a WDM network topology. We formulated an analytical model and conducted extensive discrete-event simulations to evaluate the performance of the proposed algorithms. We compared their performances with that of the state-of-the-art WDM scheduling algorithms which typically do not consider the time constraint of the transmitted messages. This study suggests that when scheduling real-time messages in WDM networks, one has to consider not only the problem of resources allocation in the network but also the problem of sequencing messages based on their time constraints.
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页码:161 / 178
页数:17
相关论文
共 22 条
  • [1] Bogineni K.(1993)Low-Complexity Multiple Access Protocols for Wavelength-Division Multiplexed Photonic Networks IEEE Journal on Selected Areas of Communications 11 590-603
  • [2] Sivalingam K. M.(1994)Time-Wavelength Assignment Algorithms for High Performance WDM Star Based Systems IEEE Transactions on Communications 42 1827-1836
  • [3] Dowd P.W.(1995)Analysis and Optimization of Transmission Schedules for Single-Hop WDM Networks IEEE/ACM Transactions on Networking 3 211-221
  • [4] Gantz A.(1992)A Collisionless Multiple Access Protocol for a Wavelength Division Multiplexed Star-Coupled Configuration: Architecture and Performance Analysis Journal of Lightwave Technology 10 1688-1699
  • [5] Gao Y.(1993)Protocols for Optical Star-Coupler Network using WDM: Performance and Complexity Study IEEE Journal on Selected Areas of Communications 11 579-589
  • [6] Rouskas G. N.(1995)Scheduling Variable-Length Messages in a Single-Hop Multichannel Local Lightwave Network IEEE/ACM Transactions on Networking 3 477-487
  • [7] Ammar M. H.(1993)POSMAC: A Medium Access Protocol for Packet-Switched Passive Optical Networks using WDMA Journal of Lightwave Technology 11 1066-1077
  • [8] Bogineni K.(1990)Performance and Protocol Improvements for Very High-Speed Optical Fiber Local Area Networks using a Passive Star Topology Journal of Lightwave Technology 8 520-530
  • [9] Dowd P. W.(1996)A Distributed Adaptive Protocol Providing Real-Time Services on WDM-based LANs Journal of Lightwave Technology 14 1245-1254
  • [10] Chipalkatti R.(undefined)undefined undefined undefined undefined-undefined