Search results for "Dove"
showing 8 items of 168 documents
Introduction of Multiflow for HSDPA
2012
This paper introduces a multi-cell transmission scheme for High-Speed Downlink Packet Access (HSDPA) networks, called Multiflow. In this concept, downlink data is transmitted to a user terminal at the border of two cells from one or both of the cells. The cells may belong to same NodeB or to two different NodeBs. The data flows are separated by different scrambling codes used by each associated cell, thus the flows can be treated independently. This provides increased multi-user diversity by means of flexibility in downlink resource management, in addition to the spatial diversity of multiple transmission locations. Another important gain mechanism for this scheme is realized by short-term …
An Approach for Network Outage Detection from Drive-Testing Databases
2012
A data-mining framework for analyzing a cellular network drive testing database is described in this paper. The presented method is designed to detect sleeping base stations, network outage, and change of the dominance areas in a cognitive and self-organizing manner. The essence of the method is to find similarities between periodical network measurements and previously known outage data. For this purpose, diffusion maps dimensionality reduction and nearest neighbor data classification methods are utilized. The method is cognitive because it requires training data for the outage detection. In addition, the method is autonomous because it uses minimization of drive testing (MDT) functionalit…
The influence of dataset size on the performance of cell outage detection approach in LTE-A networks
2015
The configuration and maintenance of constantly evolving mobile cellular networks are getting more and more complex and hence expensive. Self-Organizing Networks (SON) concept is an umbrella term for the set of automated solutions for network operations proposed by 3rd Generation Partnership Project (3GPP) group. Automated cell outage detection is one of the components of SON functionality. In early studies our research group developed data-driven approach for the detection of malfunctioning cells. In this paper we investigate the performance of the proposed solution as a function of the density of active users and the size of observation interval. The evaluation is conducted in Long Term E…
Riconfigurare i territori metroplitani. Forme di urbanizzazione e fenomeni di pressione insediativa sui sistemi di interesse naturale in Sicilia
2018
The consumption of the soil due to urbanization it is a phenomena already for many years under observations, but of which only the scientific environment has noticed the elevated environmental impact progress. From a disciplinary point of view, is possible to identify a line of research focusing on the analysis and identification of new morphologies of urbanization and on the interaction among different settlement patterns coexisting in a specific context. This reading complements with the scientific production about the forms of settlement pressure on environmental systems, producing change and deterioration on natural ecosystems and loss of biodiversity. A necessary reference for this lin…
Managing mobility in an always-best-connected IP network
2013
Recommendations of the LHC Dark Matter Working Group: Comparing LHC searches for dark matter mediators in visible and invisible decay channels and ca…
2019
Physics of the Dark Universe 26, 100377 (2019). doi:10.1016/j.dark.2019.100377
Il regime di mantenimento potenzia l’efficacia della chemioprofilassi endovescicale precoce e induzione settimanale nei confronti delle recidive degl…
2008
SCOPO DEL LAVORO: Malgrado l’efficacia della chemioterapia endovescicale eseguita precocemente dopo la resezione endoscopica di uroteliomi vescicali NMI sia stata confermata da numerosi studi multicentrici, ancora dubbio rimane il ruolo di un ulteriore schema terapeutico di mantenimento nel potenziarne l’efficacia. Ciò rimane ancora più incerto se alla singola instillazione segue un ciclo di instillazioni settimanali. Scopo dello studio è stato valutare l’utilità di uno schema di mantenimento mensile per un anno rispetto alla sola induzione settimanale per 6 settimane in pazienti sottoposti a TUR e chemioprofilassi precoce con epirubicina. MATERIALI E METODI: Sono stati randomizzati 577 paz…
Sedación en el paciente geriátrico
2004
Se exponen la utilidad de la yatrosedación y de la sedación farmacológica para el tratamiento odontológico en el paciente anciano, su aplicación es necesaria debido a la mayor prevalencia de patología oral, peor tolerancia al estrés y a la asociación frecuente con patología sistémica. Se describen las vías de administración de psicofármacos más indicada según la patología asociada y a la interrelación farmacológica más frecuente con su patología de base. La fármaco-sedación siempre debe ir acompañada de un manejo psicológico para así minimizar las dosis y de una anestesia loco-regional correcta. A review is made of the utility of iatrosedation and pharmacological sedation in the dental trea…