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Network Performance Trade-Off in Modular Data Centers With Optical Spatial Division Multiplexing
Chalmers Univ Technol, Gothenburg, Sweden..
KTH, Skolan för informations- och kommunikationsteknik (ICT).ORCID-id: 0000-0002-5318-2050
KTH, Skolan för informations- och kommunikationsteknik (ICT).
Politecn Milan, Milan, Italy..
Vise andre og tillknytning
2018 (engelsk)Inngår i: Journal of Optical Communications and Networking, ISSN 1943-0620, E-ISSN 1943-0639, Vol. 10, nr 9, s. 796-808Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Modular design based on spatial division-multiplexing switches is a promising way to improve the capacity and reduce the cabling complexity of data center networks. However, due to the coexistence of mice and elephant flows, in modular data center networks a trade-off between the blocking probability and total throughput arises. In fact, blocking elephant flows would lead to a relevant penalty on the throughput but a small penalty on the blocking probability. In this paper, we investigate the relation between the blocking and throughput in modular data center networks based on optical spatial division multiplexing. We combine the two metrics linearly by a weight factor that prioritizes them relatively. To solve the resource allocation problem, we propose both mixed integer linear programming formulations and close-to-optimal heuristics for three different spatial division multiplexing switching schemes. Simulation results demonstrate that a carefully chosen weight factor is necessary to achieve a proper balance between the blocking probability and throughput for all the schemes.

sted, utgiver, år, opplag, sider
Optical Society of America, 2018. Vol. 10, nr 9, s. 796-808
Emneord [en]
Data centers, Resource allocation, Spatial division multiplexing
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-237143DOI: 10.1364/JOCN.10.000796ISI: 000446303800009Scopus ID: 2-s2.0-85054379467OAI: oai:DiVA.org:kth-237143DiVA, id: diva2:1258694
Forskningsfinansiär
Swedish Research Council, 2014-6138Swedish Research Council, 2012-5280Swedish Research Council, 2014-6230
Merknad

QC 20181025

Tilgjengelig fra: 2018-10-25 Laget: 2018-10-25 Sist oppdatert: 2019-08-20bibliografisk kontrollert

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Fiorani, MatteoMuhammad, AjmalWosinska, Lena

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