NDLI: Efficient resource allocation for all-optical multicasting over spectrum-sliced elastic optical networks

Content Provider	IEEE Xplore Digital Library
Author	Long Gong Xiang Zhou Xiahe Liu Wenwen Zhao Wei Lu Zuqing Zhu
Copyright Year	2009
Abstract	Recently, optical orthogonal frequency-division multiplexing technology has attracted intensive research interest because spectrum-sliced elastic optical networks (EONs) can be constructed based on it. In this paper, we investigate how to serve multicast requests over EONs with multicast-capable routing, modulation level, and spectrum assignment (RMSA). Both EON planning with static multicast traffic and EON provisioning with dynamic traffic are studied. For static EON planning, we formulate two integer linear programming (ILP) models, i.e., the joint ILP and the separate ILP. The joint ILP optimizes all multicast requests together, while the separate ILP optimizes one request each time in a sequential way. We also propose a highly efficient heuristic that is based on an adaptive genetic algorithm (GA) with minimum solution revisits. The simulation results indicate that the ILPs and the GA provide more efficient EON planning than the existing multicast-capable RMSA algorithms that use the shortest path tree (SPT) and the minimal spanning tree (MST). The results also show that the GA obtains more efficient EON planning results than the separate ILP with much less running time, as it can optimize all multicast requests together in a highly efficient manner. For the dynamic EON provisioning, we demonstrate that the GA is also applicable, and it achieves lower request blocking probabilities than the benchmark algorithms using SPTand MST.
Starting Page	836
Ending Page	847
Page Count	12
File Size	764421
File Format	PDF
ISSN	19430620
Volume Number	5
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	OSA
Subject Keyword	Magnetic resonance imaging Planning Routing Modulation Optical fiber networks Joints Genetic algorithms Routing, modulation-level and spectrum assignment (RMSA) Adaptive genetic algorithm Multicast traffic Optical orthogonal frequency-division multiplexing (O-OFDM)
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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