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In the last decades the restless evolution of information and communication technologies (ICT) brought to a deep transformation of our habits. The growth of the Internet and the advances in hardware and software implementations modified our way to communicate and to share information. In this book, an overview of the major issues faced today by researchers in the field of radio communications is given through 35 high quality chapters written by specialists working in universities and research centers all over the world. Various aspects will be deeply discussed: channel modeling, beamforming, multiple antennas, cooperative networks, opportunistic scheduling, advanced admission control, handover management, systems performance assessment, routing issues in mobility conditions, localization, web security. Advanced techniques for the radio resource management will be discussed both in single and multiple radio technologies; either in infrastructure, mesh or ad hoc networks.

Radio. --- Telephone, Wireless --- Wireless (Radio) --- Wireless telephone (Early radio) --- Communication and traffic --- Telecommunication --- Telegraph, Wireless --- Communications engineering / telecommunications

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Antennas (Electronics) --- Radio --- Antennas --- Telephone, Wireless --- Wireless (Radio) --- Wireless telephone (Early radio) --- Communication and traffic --- Telecommunication --- Telegraph, Wireless

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Antennas (Electronics) --- Radio --- Antennas --- Telephone, Wireless --- Wireless (Radio) --- Wireless telephone (Early radio) --- Communication and traffic --- Telecommunication --- Telegraph, Wireless

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¿Qué papel tuvieron las radios comunitarias durante la pandemia? Los autores de esta publicación analizan el contexto y los desafíos de la comunicación popular en Ecuador. La infodemia, la proliferación de noticias falsas, las dificultades de los medios de comunicación tradicionales en llegar con información clave en la prevención de la enfermedad reactivó la importancia de las radios comunitarias. A través de ellas, en los lugares más apartados, sobre todo en la ruralidad, la población se enteró de las medidas de prevención, de las convocatorias para las pruebas de detección del virus e incluso de los decesos ocurridos a causa del Covid-19 en sus territorios. Así mismo, la radio ha tenido una importancia fundamental en la modalidad virtual de educación durante el confinamiento.

Radio technology --- Radio. --- Telephone, Wireless --- Wireless (Radio) --- Wireless telephone (Early radio) --- Communication and traffic --- Telecommunication --- Telegraph, Wireless

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Electronics --- Radio --- Electronics. --- Radio. --- Telephone, Wireless --- Wireless (Radio) --- Wireless telephone (Early radio) --- Communication and traffic --- Telecommunication --- Telegraph, Wireless --- Electrical engineering --- Physical sciences