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Strategic fairness in network resource allocation

Sujet proposé par
Directeur de thèse:
Encadré par
Doctorant: Francesca FOSSATI
Unité de recherche UMR 7606 Laboratoire d'informatique de Paris 6

Domaine: Sciences et technologies de l'information et de la communication

Projet

Communication networks are evolving so that edge network devices, such as mobile phones, tablets but also network access points and virtualization servers are able to be programmed and personalized from the one hand, and to program and customize the downstream network channels themselves from the other hand. The edge network node to transport network interface becomes the border where interactive decision-making problems arise, where network resource sharing becomes a challenging decision in many settings: when the overall demand overcomes the available resource, when the demand can be unjustified, or when the demand is unbounded.

Therefore, fairness shall be ensured. The classical models to define fairness typically are built around the notions of proportional fairness or max-min fairness, which are however biased toward single-decision making thinking. Indeed, the way to measure fairness are also typically biased toward verifying how much proportional or max-min fairness properties are met. In fact, when configuring network allocations, the canonical assumption is that a network provider has full control on all the network devices, including customer's devices and edge network nodes. Such approaches are no longer appropriate in networks where nodes can take unilateral choices such as access a network interface or provider rather than another alternative one, clearly undermining the legacy single-decision making thinking and fairness qualification.

In this research project, the goals are: - to lead to a novel definition of network strategic fairness that can be provably acceptable for all the stake-holders in a reference set of interactive networking problems; - to design a portfolio of network resource allocation algorithms that are coherent to the strategic fairness definition.

A number of application use-cases will be considered, starting from the management of shared computing capacity in network functions virtualization infrastructures and the management of shared wireless spectrum in orthogonal and non-orthogonal spectrum allocation.

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Enjeux

Defining a new notion of network fairness is an ambitious goal and requires a detailed and in-depth review of a large state of the art in both networking literature and game/decision theory literature. Approximately the first year of the research project will be spent in setting the basis of a new notion of strategic fairness, with a methodology to be defined and that could be an axiomatic approach.

The design of network resources allocation algorithms around a few reference use-cases will take the last two years of the PhD, in order to position the contribution with respect to specific solutions that are already proposed in the literature of the precise networking research area covering the use-case, which can range from network virtualization research (in particular Network Functions Virtualization Infrastructure sharing) to wireless networking areas (in particular unlicensed wireless spectrum sharing).

Ouverture à l'international

The Ph.D. student could experience one or two visiting periods abroad in Europe or America totaling up to about 9 months in the frame of on-going and forthcoming collaborative research projets with research labs abroad.