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Conférence «Distributed and self-organizing heterogeneous wireless access networks: Design, analysis, and optimization»

2 avril 2015, 11 h 00 à 12 h 00

«Small cell» is an umbrella term for low-power radio access nodes that operate in both licensed and unlicensed spectrum and have a range of 10 meter to several hundred meters. These contrast with a typical mobile macrocell, which might have a range of up to several kilometers or even higher. The term « small cell » covers femtocells, picocells, microcells, and metrocells. The evolving heterogeneous networks (HetNets) including macrocells and small cells of all types (which are also referred to as small cell networks [SCNs] hereafter) are envisioned to provide improved spectrum efficiency (bps/Hz/km2), capacity, and coverage in future wireless networks.  SCNs have to be designed not only to support high quality-of-service (QoS), but also to achieve cost-effectiveness, deployment flexibility, and scalability. To achieve the low capital expenditure (CAPEX) and operation expenditure (OPEX), a self-organizing network (SON) architecture should be adopted in the SCNs. After a brief overview of the SCNs, the major challenges in successful deployment of small cells in the next generation cellular wireless systems will be outlined. The concept of self-organization in small cell networks will be then presented. The motivation of self-organization will be discussed, and the desirable behaviors of a self-organizing small cell network in terms of scalability, stability, robustness, and agility will be introduced. In this context, the concept of cognitive small cells will be also introduced which enables the system capable of observing, learning, optimizing, and adapting to environment changes. To this end, several major open research issues and directions for future research on self-reconfiguration in small cell networks will be discussed.

Détails

Date:
2 avril 2015
Heure :
11 h 00 à 12 h 00
Catégories d’évènement:
,

Organisateur

Adel O. Dahmane, ing., Ph. D.
E-mail :
dahmane@ieee.org

Lieu

2506, pavillon Léon-Provancher
3351, boulevard des Forges
Trois-Rivières, Canada
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