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See detailCarrier and Power Assignment for Flexible Broadband GEO Satellite Communications System
Abdu, Tedros Salih UL; Lagunas, Eva UL; Kisseleff, Steven et al

in PIMRC 2020 Proceedings (2020)

Current multi-beam GEO satellite systems operate under a limited frequency reuse configuration and considering uniform power assignment across beams. The latter has been shown to be inefficient in ... [more ▼]

Current multi-beam GEO satellite systems operate under a limited frequency reuse configuration and considering uniform power assignment across beams. The latter has been shown to be inefficient in matching the geographic distribution of the traffic demand. In this context, next generation of broadband GEO satellite systems will be equipped with more flexible and reconfigurable payloads, facilitating on-demand resource allocation. In this paper, we consider both carrier and power assignment to match the requested beam demands while minimizing the total transmit power and the total utilized bandwidth. A novel optimization problem is formulated and, given its non-convex structure, we divide the problem into two tractable sub-problems. First, we estimate the number of adjacent frequency carriers required for each beam to satisfy its demand and, subsequently, we optimize the power allocation based on the previously assigned carriers. We validate the proposed method with extensive numerical results, which demonstrate its efficiency with respect to benchmark strategies. [less ▲]

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See detailSmall Scale CLTs for the Nodal Length of Monochromatic Waves
Dierickx, Gauthier; Nourdin, Ivan UL; Peccati, Giovanni UL et al

E-print/Working paper (2020)

Detailed reference viewed: 31 (3 UL)
See detailEnquête transfrontalière sur le vécu de la littérature au lycée
Raus, Tonia UL; Promonet, Aurore

E-print/Working paper (2020)

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See detailLe dépaysement ou quand tremble l'écriture de Jean Portante
Raus, Tonia UL

in Thiltges, Sébastian; Solte-Gresser, Christiane (Eds.) Écologie culturelle et cultures écologiques dans la Grande Région (2020)

Portante’s work develops a genuine poetics of space. On the one hand: the geo- graphical space, shaped by the back and forth between the Terres Rouges of Differdange, the host land, and the homeland of ... [more ▼]

Portante’s work develops a genuine poetics of space. On the one hand: the geo- graphical space, shaped by the back and forth between the Terres Rouges of Differdange, the host land, and the homeland of L’Aquila, the trembling land since the earthquake of 2009. On the other hand: the textual space thus generated, shaped by the symbolism of the in-between (French/Italian, fiction/non-fictionnal). The topoi of the earth and the (family) home, correlated to the matrices of the work, the mother tongue and family history, are constantly revisited by the author, and can therefore be re-read under the double prism of ecopoetics and material ecocriticism. The North/South tension (Luxembourg/Italy) can then be considered afresh for its poetic and narrative transformation. This article will thus try to formulate a hypothesis for an ecopoetic reading of Portante’s work centred on the pivot point that constitutes – for both writing and work – the L’Aquila earthquake, which engages the work in a new cycle. This trembling of the writing will then be addressed through the notion of “dépaysement”, in the polysemic richness that offers this term, or even motif: from a literal to a political and poetic meaning. [less ▲]

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See detailRezension zu: Adel und Mehrsprachigkeit in der Frühen Neuzeit. Ziele, Formen und Praktiken des Erwerbs und Gebrauchs von Fremdsprachen, hg. von Helmut Glück, Mark Häberlein und Andreas Flurschütz da Cruz. Wiesbaden 2019
Bendheim, Amelie UL

in Mitteilungen der Residenzen-Kommission der Akademie der Wissenschaften zu Göttingen. Neue Folge: Stadt und Hof (2020), (9), 89-91

Detailed reference viewed: 66 (1 UL)
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See detailGesonderte Ruhestätten für besondere Tote: Soldatengräber und Garnisonsfriedhöfe unter besonderer Berücksichtigung der Entwicklung in Luxemburg
Kolnberger, Thomas UL

in Loew, Benedikt; Thewes, Guy; Klauck, Hans Peter (Eds.) Intra muros - Infrastruktur und Lebensalltag in Festungen - Einrichtungen der Fürsorge (2020)

Detailed reference viewed: 143 (3 UL)
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See detailKernel Selection in Nonparametric Regression
Halconruy, Hélène UL; Marie, Nicolas

E-print/Working paper (2020)

In the regression model Y=b(X)+ε, where X has a density f, this paper deals with an oracle inequality for an estimator of bf, involving a kernel in the sense of Lerasle et al. (2016), selected via the PCO ... [more ▼]

In the regression model Y=b(X)+ε, where X has a density f, this paper deals with an oracle inequality for an estimator of bf, involving a kernel in the sense of Lerasle et al. (2016), selected via the PCO method. In addition to the bandwidth selection for kernel-based estimators already studied in Lacour, Massart and Rivoirard (2017) and Comte and Marie (2020), the dimension selection for anisotropic projection estimators of f and bf is covered. [less ▲]

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See detailWhat makes internationally-financed climate change adaptation projects focus on local communities? A configurational analysis of 30 Adaptation Fund projects
Manuamorn, Ornsaran Pomme; Biesbroek, Robbert; Cebotari, Victor UL

in Global Environmental Change (2020), 61(March), 102035

Detailed reference viewed: 45 (0 UL)
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See detailChanging Trends in Gender Equality in Ethiopia
Elezaj, Erëblina; Cebotari, Victor UL; Ramful, Nesha et al

Report (2020)

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See detailBottom up construction of a personality taxonomy
Condon, D; Wood, D; Möttus, R et al

in European Journal of Psychological Assessment (2020), 36

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See detailReconfigurable Intelligent Surfaces for Smart Cities: Research Challenges and Opportunities
Kisseleff, Steven UL; Alves Martins, Wallace UL; Al-Hraishawi, Hayder UL et al

in IEEE Open Journal of the Communications Society (2020)

The concept of Smart Cities has been introduced as a way to benefit from the digitization of various ecosystems at a city level. To support this concept, future communication networks need to be carefully ... [more ▼]

The concept of Smart Cities has been introduced as a way to benefit from the digitization of various ecosystems at a city level. To support this concept, future communication networks need to be carefully designed with respect to the city infrastructure and utilization of resources. Recently, the idea of 'smart' environment, which takes advantage of the infrastructure in order to enable better performance of wireless networks, has been proposed. This idea is aligned with the recent advances in design of reconfigurable intelligent surfaces (RISs), which are planar structures with the capability to reflect impinging electromagnetic waves toward preferred directions. Thus, RISs are expected to provide the necessary flexibility for the design of the ‘smart’ communication environment, which can be optimally shaped to enable cost- and energy-efficient signal transmissions where needed. Upon deployment of RISs, the ecosystem of the Smart Cities would become even more controllable and adaptable, which would subsequently ease the implementation of future communication networks in urban areas and boost the interconnection among private households and public services. In this article, we provide our vision on RIS integration into future Smart Cities by pointing out some forward looking new application scenarios and use cases and by highlighting the potential advantages of RIS deployment. To this end, we identify the most promising research directions and opportunities. The respective design problems are formulated mathematically. Moreover, we focus the discussion on the key enabling aspects for RIS-assisted Smart Cities, which require substantial research efforts such as pilot decontamination, precoding for large multiuser networks, distributed operation and control of RISs. These contributions pave the road to a systematic design of RIS-assisted communication networks for Smart Cities in the years to come. [less ▲]

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See detailThe Multidimensional Forced-Choice Format as an alternative for rating scales. Current state of research
Wetzel, E; Frick, S; Greiff, Samuel UL

in European Journal of Psychological Assessment (2020), 36

Detailed reference viewed: 26 (0 UL)
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See detailGenerating codebooks to ensure the independent use of research data. Some guidelines
Horstmann, K T; Arslan, R; Greiff, Samuel UL

in European Journal of Psychological Assessment (2020), 36

Detailed reference viewed: 26 (1 UL)
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See detailSingle-cell transcriptomics reveals multiple neuronal cell types in human midbrain-specific organoids
Smits, Lisa UL; Magni, Stefano UL; Kinugawa, Kaoru et al

in Cell and Tissue Research (2020)

Detailed reference viewed: 66 (6 UL)
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See detailBayesian optimisation to select Rössler system parameters used in Chaotic Ant Colony Optimisation for Coverage
Rosalie, Martin; Kieffer, Emmanuel UL; Brust, Matthias R. UL et al

in Journal of Computational Science (2020), 41

Detailed reference viewed: 78 (14 UL)
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See detailApproximation of Riemannian measures by Stein’s method
Thompson, James UL

E-print/Working paper (2020)

Detailed reference viewed: 63 (2 UL)