Network Performance Trade-Off in Modular Data Centers With Optical Spatial Division Multiplexing
Artikel i vetenskaplig tidskrift, 2018

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.

Data centers

Spatial division multiplexing

Resource allocation

Författare

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Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

[Person d8a8b3dd-ad68-4d39-903e-bf7b9c40eec6 not found]

Kungliga Tekniska Högskolan (KTH)

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Kungliga Tekniska Högskolan (KTH)

[Person 4150b22d-eba2-49dd-92fc-7c3d0c4eb6d6 not found]

Politecnico di Milano

[Person d2d4eded-76c1-4f1c-997c-bb6fb0ff359f not found]

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

[Person f3dc2b7f-1bbc-4ed4-ae0a-857c25561868 not found]

Kungliga Tekniska Högskolan (KTH)

Journal of Optical Communications and Networking

1943-0620 (ISSN)

Vol. 10 9 796-808

Teknologier for spatiell multiplexning: nästa utmaning inom optisk kommunikation

Vetenskapsrådet (VR), 2015-01-01 -- 2018-12-31.

Mot flexibla och energi-effektiva datacenternätverk

Vetenskapsrådet (VR), 2015-01-01 -- 2018-12-31.

Adaptiva optiska nätverk: Teori och algoritmer för systemoptimering

Vetenskapsrådet (VR), 2013-01-01 -- 2016-12-31.

Ämneskategorier

Telekommunikation

Beräkningsmatematik

Kommunikationssystem

DOI

10.1364/JOCN.10.000796

Mer information

Senast uppdaterat

2019-07-17