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Competències professionals per als bibliotecaris dels serveis de referència i atenció a l'usuari

open access: yesBiD: Textos Universitaris de Biblioteconomia i Documentació, 2003
Directriu elaborada la RUSA Task Force on Professional Competencies per proveïr a bibliotecaris, biblioteques i centres d’informació d’una pauta modèlica sobre les competències essencials per reeixir en els serveis de referència i atenció a l’usuari.
American Library Association. Reference and User Services Association
doaj  

Joint Content Caching, Recommendation, and Transmission for Layered Scalable Videos Over Dynamic Cellular Networks: A Dueling Deep Q-Learning Approach

open access: yesIEEE Access
Scalable Video Coding (SVC) and edge caching are two techniques that hold the potential to improve user-perceived video viewing experience. Moreover, video recommendation can further enhance the caching gain by reshaping users’ video preferences ...
Junfeng Xie   +3 more
doaj   +1 more source

Distributed User Association in Energy Harvesting Dense Small Cell Networks: A Mean-Field Multi-Armed Bandit Approach

open access: yesIEEE Access, 2017
The emerging ultra-dense small cell networks (UD-SCNs) will need to combat a variety of challenges. On the one hand, massive number of devices sharing the limited wireless resources renders centralized control mechanisms infeasible due to the excessive ...
Setareh Maghsudi, Ekram Hossain
doaj   +1 more source

Service on Demand: Drone Base Stations Cruising in the Cellular Network

open access: yes, 2017
In this paper, the deployment of drone base stations to provide higher performance in the cellular networks is analyzed. In particular, we investigate a new mobility model for drone base stations where they can move freely in the network, ignoring the ...
Ding, Ming   +2 more
core   +1 more source

A Joint Power Allocation and User Association Based on Non-Cooperative Game Theory in an Heterogeneous Ultra-Dense Network

open access: yesIEEE Access, 2019
Driven by the increase of data traffic, a heterogeneous ultra-dense network (H-UDN) constitute one of the most promising techniques to support the 5G mobile system.
Amel Khodmi   +3 more
doaj   +1 more source

A Study of Transmission Point Selection for Multi-Connectivity in Multi-Band Wireless Networks

open access: yesApplied Sciences
In 5th generation mobile communication networks, the frequency band of the millimeter band of 30–100 GHz is supported to provide a transmission speed of 20 Gbps or higher.
Eunkyung Kim   +2 more
doaj   +1 more source

Mobility-Aware User Association for 5G mmWave Networks

open access: yesIEEE Access, 2017
In this paper, we design a mobility-aware user association strategy for millimeter-wave (mmW) networks to overcome the limitations of the conventional received power (RSS)-based association strategies in a mobile 5G scenario.
Angela Sara Cacciapuoti
doaj   +1 more source

User Association With Mode Selection in LWA-Based Multi-RAT HetNet

open access: yesIEEE Access, 2019
Restrained by the long term evolution (LTE) limited network capacity, WiFi technology is considered as one of the promising solutions to leverage the traffic load and enhance the LTE capacity.
Noha A. Elmosilhy   +2 more
doaj   +1 more source

Joint user association and power control scheme based on energy consumption and QoE in heterogeneous network

open access: yesDianxin kexue, 2017
Based on multi-objective optimization,a joint user association and power control scheme was proposed in heterogeneous network environment,aiming to reduce the system energy consumption and improve user quality of experience.The scheme took the system ...
Shiyu JI   +3 more
doaj  

Joint Power Allocation and User Association Optimization for Massive MIMO Systems

open access: yes, 2016
This paper investigates the joint power allocation and user association problem in multi-cell Massive MIMO (multiple-input multiple-output) downlink (DL) systems.
Björnson, Emil   +2 more
core   +2 more sources

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