Search results for "OMA"

IEEE Access Special Section Editorial: Exploiting the Benefits of Interference in Wireless Networks: Energy Harvesting and Security

2018

Interference used to be viewed as a harmful factor in wireless networks, which can reduce the quality of information transmission. To combat against interference, many interference management techniques have emerged. Due to the latest research advances, interference (or noise) can also be exploited to offer some benefits to wireless networks. The first aspect is that interference in multi-user networks can be collected as a green power supply for the transceivers, known as wireless energy harvesting. Another application is that one can generate artificial noise to disrupt the adversarial eavesdropping, and guarantee the security of wireless networks. Therefore, conventional interference man…

A Double Auction Mechanism for Virtual Resource Allocation in SDN-based Cellular Network

2016

The explosively growing demands for mobile traffic service bring both challenges and opportunities to wireless net- works, among which, wireless network virtualization is proposed as the main evolution towards 5G. In this paper, we first propose a Software Defined Network (SDN) based wireless virtualization architecture for enabling multi-flow transmission in order to save capital expenses (CapEx) and operation expenses (OpEx) significantly with multiple Infrastructures Providers (InPs) and multiple Mobile Virtual Network Operators (MVNOs). We for- mulate the virtual resource allocation problem with diverse QoS requirements as a social welfare maximization problem with transaction cost. Due…

Energy Efficient Optimization for Wireless Virtualized Small Cell Networks With Large-Scale Multiple Antenna

2017

Wireless network virtualization is envisioned as a promising framework to provide efficient and customized services for next-generation wireless networks. In wireless virtualized networks (WVNs), limited radio resources are shared among different services providers for providing services to different users with heterogeneous demands. In this paper, we propose a resource allocation scheme for an orthogonal frequency division multiplexing-based WVN, where one small cell base station equipped with a large number of antennas serves the users with different service requirements. In particular, with the objective to obtain the energy efficiency in the uplink, a joint power, subcarrier, and antenn…

Implementing a lecture feedback system using semi-ad-hoc wireless networks

2007

Service-Oriented Wireless Virtualized Networks: An Intelligent Resource Management Approach

2022

Trajectory Design and Resource Allocation for Multi-UAV Networks : Deep Reinforcement Learning Approaches

2023

The future mobile communication system is expected to provide ubiquitous connectivity and unprecedented services over billions of devices. The unmanned aerial vehicle (UAV), which is prominent in its flexibility and low cost, emerges as a significant network entity to realize such ambitious targets. In this work, novel machine learning-based trajectory design and resource allocation schemes are presented for a multi-UAV communications system. In the considered system, the UAVs act as aerial Base Stations (BSs) and provide ubiquitous coverage. In particular, with the objective to maximize the system utility over all served users, a joint user association, power allocation and trajectory desi…

”Ei elämääni lomia mahtunut.” – Naisten muistelukerrontaa palkkatyöstä talvi- ja jatkosotien ja jälleenrakennuksen aikana

2014

My doctoral dissertation examines women’s memory narratives of paid labour during the Winter War (1939–1940) and the Continuation War (1941–1945, including the Lapland War) and in the years of rebuilding in Finland until early 1950s. As an ethnologist, I am interested in the personal level of everyday life and experiences of work. My main interest lies in the meanings women give to paid labour. The focus is on memory narratives, and I am reaching and I aim to bring to light the meanings given to work: what did paid labour mean for women during the war and the time of rebuilding and how do they tell about it decades afterwards? I analyse, for example, the effect of the war on women’s work ex…

Aux antipodes du modèle normatif de la féminité : la femme criminelle dans "Thérèse Raquin" d’Émile Zola et "Thérèse Desqueyroux" de François Mauriac

2020

A woman who killed or intended to kill her husband is the main character in two novels belonging to the Realist movement. Both the protagonists have the same given name: Therese. Zola’s Therese Raquin is a “real” killer, incapable of winning the “physiological” influence of her nervous temperament, her cowardice and hypocrisy, while Mauriac’s Therese Desqueyroux, whose criminal intentions failed, is a mysterious person whose main problem is her incompatibility with her milieu. Both novels show a criminal woman as the opposite of the accepted model of womanliness.

Le périple erratique de la mendiante durassienne

2022

Marguerite Duras focuses on a rejected individual on the margins of society. Her literary characters oppose being perceived as devoid of autonomy, contesting the fixed model of a submissive and passive woman. On the contrary, they reject the social order and the traditional system of values, claiming the right to freedom and thus demonstrating transgressive female behaviour. Duras’ heroine, a mysterious, crazy person who is looking for love and is aware of her otherness and alienation, appears as a kind of femme fatale or a witch. This image of a “different” woman – a disturbing, unhappy, lost, borderline person experiencing a specific crisis – is best illustrated by a beggar. She identifie…

Opiniones y experiencias en el desempeño de la dirección escolar de las mujeres directoras en Andalucía

2008

Este trabajo persigue identificar las opiniones y experiencias ante la dirección escolar de las directoras de centros públicos de Educación Infantil y Primaria en Andalucía. Se realizó un estudio tipo encuesta con una muestra de 206 directoras seleccionada mediante un muestreo polietápico, utilizando el cuestionario para la recogida de información. Los resultados muestran que las directoras tienen mediana edad, una dilatada experiencia profesional y, en su mayoría, están relativamente libres de cargas familiares. Accedieron al cargo por razones altruistas y personales, y señalan la falta de apoyo de la Administración como su principal problema. Conciben su función como una labor de equipo e…