Efficient design and scalable control for store-and-forward capable optical transport networks

The increasingly bursty nature of delaytolerable content delivery services requires new design and control perspectives in state-of-the-art end-to-end bufferless transport networks. Store-and-forward capable networked buffers in end-to-end lightpath networks enable an optical delay-tolerant networki...

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Veröffentlicht in:Journal of optical communications and networking Jg. 9; H. 8; S. 699 - 710
Hauptverfasser: Lee, Chankyun, Rhee, June-Koo Kevin
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Optica Publishing Group 01.08.2017
Schlagworte:
Buffer storage
Heuristic algorithms; Optical fiber networks;WDM networks; Wide area networks
Optical buffering
Optical fiber networks
Optical fibers
Optical packet switching
Optical switches
ISSN:1943-0620, 1943-0639
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Zusammenfassung:The increasingly bursty nature of delaytolerable content delivery services requires new design and control perspectives in state-of-the-art end-to-end bufferless transport networks. Store-and-forward capable networked buffers in end-to-end lightpath networks enable an optical delay-tolerant networking (DTN) service that efficiently improves the capacity of optical networks by time-domain traffic shaping. We model an architecture of the optical DTN and asymptotically analyze the blocking probability performance as a function of the buffer node ratio. We propose a novel buffer node location algorithm by suggesting a bottleneckness centrality measure and evaluate the algorithm by comparing it with reference facility location algorithms. Rigorous simulation studies over practical core network topologies, as a function of networking cost, reveal higher performance of the optical DTN model as well as the proposed network-planning algorithms.
ISSN:1943-0620
1943-0639
DOI:10.1364/JOCN.9.000699