In diesem Papier, we introduce an all-optical metro network architecture, called
MOON, to serve converged multigranular traffic from fixed, mobile, and edge
computing services. Since traffic is characterized by high dynamicity and
diverse access requirements, MOON uses network slicing to provide quality of
service (QoS) aware wavelength allocation to fulfill the various applications
traffic demands. MOON incorporates hybrid optical switching (HOS) combining
optical circuit switching (OCS) and optical time slotted switching (OTS)
capabilities that appropriately maps different traffic types to them.
Speziell, the OCS network slice explicitly serves aggregated traffic of
long duration and high volume, while OTS network slice serves short bursty
traffic. In order to provide flexibility, separate sets of wavelengths are used
for OCS and OTS traffic service, both within a metro-access network (MAN)
(intra-MAN) and between different MANs (inter-MAN). We extensively study the
required number of wavelengths to efficiently serve OCS and OTS traffic for
intra- and inter-MAN communication scenarios, taking into account their
specific traffic access requirements in an effort to optimize wavelengths
utilization. In our study, we assume nonblocking OCS communication for
immediate access; therefore the number of required OCS wavelengths depends only
on the number of nodes, while the number of required OTS wavelengths to obtain
a desired QoS and latency level is independent from the number for OCS
wavelengths. Simulation results show that within an OTS intra-MAN we achieve
end-to-end (E2E) latency in submilliseconds scale, suitable for dynamic bursty
traffic, while it is an decreasing function of the number of used OTS
wavelengths.

Dieser Artikel untersucht Zeitreisen und deren Auswirkungen.

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