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Unifying Management of Future Networks
With Trust
Laurent Ciavaglia, Samir Ghamri-Doudane, Mikhail Smirnov,
Panagiotis Demestichas, Vera-Alexandra Stavroulaki, Aimilia
Bantouna, and Berna Sayrac
Stability, robustness, and security issues arising from future self-organizing
networks (SONs) must be understood today, in order to be incorporated into
their design, standardization, and certification. We address the issue of
operator trust in Long Term Evolution (LTE) SON through the following five
requirements and outline our approaches to meet them: 1) trust must be
measurable, 2) trust must be SON-specific, 3) trust must be model-driven,
4) trust must be propagated end-to-end, and 5) trust must be certified. As
such, we consider the three facets of operator trust—reliable operation,
trustworthy interworking, and seamless deployment and suggest a
composite metric for SON stability; we define a key performance indicator
(KPI)-based envelope of dependable adaptations; we demonstrate how to
construct such models based on predicates; we show that trust networks
emerge from predicate-enabled behaviors; and we outline the certification
process. Trust predicates that are defined at the design phase as abstract
behaviors, and verified at runtime as fully qualified ones, prove to have the
power of policies. Once checked, they can be reused many times, and
rewritten to cater to new behaviors. © 2012 Alcatel-Lucent.
entire manufacturing chain from design technology
to the deployment process.
Network designers today are focused on cogni-
tive, software defined, and self-organizing solutions
for future networks. We try to take that focus one
step further, to the self-orchestration of multiple con-
trol loops. Along with self-orchestration, we also
believe the deployment of practical machine learning
techniques should not be underestimated.
Which possible exploits can be eliminated during
the design of add-ons? We are not trying to solve a
Introduction
Our goal is not to identify how future technology
may be exploited, but to design technology add-ons
that can prevent exploitation. Our intention is to
design add-ons that can benefit both the management
of future technology (we term it governance, perhaps
unconventionally but with the clear goal to differen-
tiate it from conventional management) and increase
the level of operator trust in that future technology.
We are also interested in contributing to the certifica-
tion process for future equipment that shall cover the
Bell Labs Technical Journal 17(3), 195–214 (2012) © 2012 Alcatel-Lucent. Published by Wiley Periodicals, Inc.
Published online in Wiley Online Library (wileyonlinelibrary.com) • DOI: 10.1002/bltj.21568