Radio Communications Research Papers - Academia.edu (original) (raw)

The quantum cryptography can replace conventional key exchange mechanism with the polarized photons using channels like optic fiber cables. Quantum cryptographic can also provide far and secure data communication. The quantum key distribution will have uses in different types of communication between distant parts of earth. So this chapter discussing various aspects of Quantum key distribution and successfully calculated polarized photon loss during transmission of Quantum cryptography link, while using in various type of atmospheric conditions like Mist, Fog and Haze. Also successfully calculated Data rate as well as probability of single polarized photon missing by successfully utilizing the Light transmission characteristics and power measurements in various Atmospheric conditions.

- by and +1
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- Radio Astronomy, Quantum Information, Embedded Systems, Computing

Modern communications technology revolutionized the way, mobility and efficiency of electronic communications. Starting from with Alexander Graham Bells' telephone experiments to widely practiced W-CDMA network and the nearly achieved 4G mode of communications, all had and will have great contributions in today's voice/data network arena. Wireless technology has achieved evolutionary success aiming at unified target: efficiency, performance and feasibility in high mobile environment. The mobile experience is expanding everywhere fulfilling the basic electronic communication needs. The first generation (1G) was analog. 1G established seamless mobile connectivity used for basic mobile voice until being replaced by the second generation (2G) digital telecommunications technologies which increased voice capacity delivering mobile to the masses with network infrastructure supporting text messaging. The success of digital voice and simple data prompted to the development of cellular wireless communication system with improved data connectivity and more accessible features leads to followed by the third generation (3G). Third generation system having mobile optimization for data enabling mobile broadband services with better and higher speed of data transfer and connectivity. The fourth generation (4G) having more capacity for faster and better wireless mobile broadband experiences with accessing capability to wide range of communication services, including advanced mobile services, and enhancement in the quality of services with increase in the bandwidth. In this paper we address the evolution of wireless modern mobile communication systems, from first generation (1G) to the widely practiced third generation (3G), recently introduced fourth generation (4G) and some glimpse of foreseeable future of fifth generation (5G).

- by krishn kumar gupt
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- Wireless Communications, Radio Communications

El libro contiene cien aproximaciones al pasado, presente y futuro de la radio desde diversas y complementarias perspectivas: emisión y recepción, locución y producción, géneros y formatos, equipamiento y tecnología, participación y formación. Ha sido elaborado por diez especialistas de Iberoamérica y España, y trata de identificar y describir los cambios sufridos por el medio radiofónico a lo largo de su primer siglo de vida.

- by Luis Miguel Pedrero Esteban and +1
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- Radio, Radio History, Radio Production, Broadcasting Filming/Radio and TV Production

perancangan microwave di Kab Nganjuk

- by Nefia Ayu Prasasti
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- Radio Communications

Abstraksi Salah satu model alat telekomunikasi yang handal pada saat terjadi bencana adalah perangkat radio komunikasi. Perangkat radio dengan model Handy Talky, memiliki kemampuan jarak komunikasi yang terbatas. Dengan menggembangkannya menjadi RoIP (Radio Over IP) maka sistem telekomunikasi radio tersebut di tumpangkan pada sistem VoIP agar sistem telekomunikasi radio menjadi lebih global dan mampu mengatasi masalah interoperabilitas dalam masalah telekomunikasi secara umum dan sistem telekomunikasi tanggap bencana. Penelitian ini meneliti tingkat kehandalan dari RoIP (Radio Over IP) yang terimplementasi pada sistem komunikasi tanggap bencana. Pengujian meliputi sistem VOX/Switcher, Packet Loss dan Delay terhadap penggunaan CODEC dan jumlah pengguna serta kualitas internet mobile dari beragam provider yang mampu di gunakan untuk sistem RoIP. Kata kunci: RoIP, Radio Over IP, VOX, CODEC, Tanggap Bencana

- by genevieve baudoin
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- Radio Communications

Resumen: En el momento actual se puede señalar una importante diversificación en los
modos de consumo de contenidos sonoros. La radio ha dejado de detentar la exclusiva de la
sono-esfera musical para compartir tiempos y espacios con otras plataformas 2.0 que
posibilitan una experiencia, a la vez personal y social, también en el móvil. Para encontrar su
espacio en la nueva ecología de medios las emisoras musicales deben apostar por fórmulas
comunicativas que le permitan fidelizar oyentes, especialmente entre las nuevas generaciones.
En esta línea el objeto del presente trabajo ha sido el de analizar la transposición de las
cadenas musicales españolas a las radioAPPs para conocer su grado de adaptación a los
smartphones así como el desarrollo de estrategias que aporten valor añadido a los oyentesusuarios.

This is an ethnograhic paper about A.L.E.R.T. Communications, one of the fifty radio communications groups in Baguio City. Here, the organization's history and responsibility to the city as a volunteer civic group is discussed. Moreover, this paper looks into its organizational culture that serves various communicative functions in terms of identity and their advocacy on volunteerism.

- by Jessica Lorenzana
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- Ethnography, Volunteerism, Radio Communications

This work proposes solutions to solve the incoming challenges in 5G base station planning. The machine learning-based algorithms were proposed for location planning and policy planning. Machine learning algorithms require a considerable amount of data, the ray tracing engine with the theoretical propagation models for 5G NR frequency bands is developed. The experiment results from the proposed algorithms in location planning have proved to be able to determine the optimal locations based on the simulation for both single base station and multiple base stations planning. Additionally, deep reinforcement learning algorithms were introduced to implement the 5G small cell to be an AI-powered small cell by learning the multipath signals from its connected users to construct an optimal policy to control the transmit power and radiation pattern. With the implementation of deep neural networks, the small cell was able to acknowledge the unprecedented information from multipath signals. The final policy planning from the AI-powered small cell has shown to improve the power efficiency and the service quality of the connected devices.

- by thienne johnson
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- Radio Communications

Dans ce Project d’investigation on prétend de conjuguer l’idée de
service public de la radio avec la capacité de créer de réponses de la part des écouteurs. Ce service se traduit à la transmission des programmes d’intérêt pour les auditeurs et à la capacité de mettre au contact les auditeurs les uns les autres, de les faire être en relation. Le service que la radio offre a l’audience se matérialise à ce project-çi dans les programmes de radio du point du jour. L’organisation de ces programmes c’est très différent des autres programmes autant que ces qui reçoivent les contenues se sont bouleversés en émetteurs et parfois en acteurs sociaux d’initiatives promues par eux-mêmes.

- by Aurora Garcia Gonzalez
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- Radio Advertising, Talk Radio, Radio Communications, Words on Radio

This work presents observations from an extensive set of measurements of the direction of arrival and signal strength of HF signals propagating on a path (Ottawa to Bruntingthorpe) oriented along the mid-latitude trough with path length 5254km. Signals were radiated on five frequencies between 5.4 and 14.4 MHz and measurements span the period from the 2009 sunspot minimum to July 2014, which is within the present sunspot maximum. Deviations were observed to occur from 7 to 14.4 MHz. The largest deviationswere mostly southerly and occurred at the highestfrequencies:8, 11.1 and 14.4 MHz. In general, deviations occurred more in winter than summer. The received signal strengths were greater during summer than winter and the largest signal strengths were produced at the lowest frequency while the largest frequency produced the least signal strengths. There is also an observed effect on the duration and percentage of occurrence of propagation due to the solar cycle.

- by Charles Okokon
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- Radio Communications

In this article we take advantage of the experiences gained while working on the project SDRECOL to propose a model that allows us to promote the use of Software Defined Radio for developing solutions to support the Radio Spectrum Management. We also take advantage of the benefits of SDR to observe the Radio Spectrum, thus integrating not only the wide range of possibilities offered by this technology in combination with the existing ones, but also the Internet of Things and the support of different persons. Finally, we analyze two solutions implemented in the project SDRECOL in such a way that it is possible to do both: validate the model and demonstrate in practice the magnitude of the opportunities provided by SDR to deal with diverse needs of RSM such as solution for monitoring the RS and measurement of non-ion radiation; both of them based on the integration of SDR with IoT.

- by Oscar Andrés Ribero Ramos and +1
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- Cognitive radio, Spectrum Management, Software Defined Radios (SDR), Internet of Things (IoT)

radiofonía a nuevas plataformas web como las redes sociales. Cadenas, emisoras,
espacios o comunicadores radiofónicos han creado sus propios perfiles
en estas plataformas, mayoritariamente en Twitter y Facebook. Estos
perfiles constituyen una expansión de los contenidos de la radio convencional
para una audiencia que, cada vez más, acude a Internet para ampliar la
información de los medios tradicionales. Si en un primer momento la creación
de perfiles sociales por las marcas radiofónicas respondía a una tendencia,
en el contexto actual la apropiación de dichos canales constituye una
necesidad, especialmente desde aspectos como la personalización de contenidos,
la participación de los oyentes-usuarios o la consolidación de comunidades
online. El presente trabajo analiza la presencia y utilización que
los principales programas de la radio española dan a sus canales en Twitter.
Especialmente se ha prestado atención al grado de adaptación de los espacios
radiofónicos a esta plataforma atendiendo a aspectos como la frecuencia
de actualización y de publicación de links, hashtags, menciones y retuits, así como a otras variables relacionadas con la influencia de estos perfiles en
la red de microblogging.

- by Teresa Piñeiro-Otero and +1
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- Social Networking, Twitter, Redes sociales, Participación

This presentation attempts to examine the social and communicational changes that new technologies and especially internet technology has over “traditional” media, such as radio and communication practices. More than ninety years after the world’s first station was founded, radio is still the most pervasive, accessible, affordable, and flexible mass medium available. Over the past few years a number of experiments blending independent local radio and the Internet are creating new models of communication. A newer generation of audience evolved through this amalgamation of older and newer technology. Interfaces that allow the user to select through a wide range of music styles and artists transform the radio to a personal music player with the quality elements of the old medium and the personalized music choices of the audience.

- by Andreas Giannakoulopoulos
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- Communication, Radio, Radio Formats, Radio Communications
- by ALEKSANDAR Neskovic
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- Computer Science, Radio Communications

Radio Relations is collection of post-conferences papers of ECREA Radio Research Section Conference held in Lublin in September 2017. The book highlights what radio actually is: a medium created to connect different places at a distance. Subtle but pervasive, simple but graceful, radio build affective relations – either between listeners and the world or between listeners themselves. The word relations is plural. It suggests the idea that radio is both an economic activity – related to technology, production, working routines and business – and a cultural industry – related to aesthetics, art, social interaction, education and politics. Since relations are relevantly human, we can read about how radio appeals to personal commitment and can reinforce a sense of community too. The unique value of this book lies both in erudite essays of Seán Street and Enrico Menduni, world-famous figures of radio research, and in perspectives sketched by young brilliant radio practitioners and researchers. Diverse views on the radio communications from authors across the different regions of the world, eg. Brazil, Canada, Italy, Poland, France, Spain or United Kingdom will certainly inspire radio researchers, media historians, sociologists and journalism students.

- by Grazyna Stachyra
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- Radio Communications
- by luis alonso
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- Radio Communications

El objetivo principal de este trabajo ha sido localizar y definir los nuevos con- ceptos que configuran el ámbito científico de la comunicación radiofónica en un contexto caracterizado por la evolución de las tecnologías y su incidencia para la conceptualización de espacio y tiempo imprescindibles en el medio radiofónico. Lo primero que parece advertirse es que está cambiando el mismo concepto de radio.
La metodología utilizada ha sido principalmente la revisión de fuentes para la localización y definición de los nuevos conceptos que conforman el espacio mediáti- co a partir de su forma más consolidada en la bibliografía contemporánea. Se trata pues de un análisis descriptivo, que pretende aportar una versión unificada de los nuevos contenidos en la disciplina comunicación radiofónica. Los resultados permi- ten ofrecer al menos una aproximación al conocimiento del trabajo de los profesio- nales de radio en un momento de importantes cambios para el medio.

- by Aurora Garcia Gonzalez
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- Communication, Wireless Communications, Narrative, Transmedia

In current years, there have been a large progress in Wireless Sensor Networks (WSN) due to their development in term of hardware and cost reduction. Plenty of routing protocols have been proposed and developed depending on the application and network architecture. One of the most efficient energy management of the wireless sensor networknodes is provided by the LEACH (Low Energy Adaptive Clustering Hierarchy) mechanism. This hierarchical protocol uses cluster head function of the nodes to aggregate and forward the messages from the cluster members to the Sink node. Each node decides to become cluster head stochastically in each epoch time intervals. Nodes have enough energy to reach directly through radio channel any of the nearest cluster nodes, as well as the sink node. Optimization algorithm is required to provide efficient energy consumption on the WSN clusters level. A node being cluster head in the actual epoch time can repeat this function just with a probability p in time. ...

- by M. Riduan
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- Radio Communications
- by Sebastien Roy
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- Radio Communications
- by Bostjan Batagelj
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- Antennas, Smart Antenna, IEEE 802.16 (WiMAX), Wimax
- by Philippe Leroux
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- Radio Communications
- by Luka Naglic
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- Optical Fiber Communications, Radio over fiber, Radio Communications

This article presents a solution for the convergence of mobile and fixed access networks on the physical level that allows different service
providers to share the same mobile infrastructure. A mobile cell solution is presented which features a fibre optic access infrastructure that is independent
of the standard and allows the transmission of different types of broadband telecommunication traffic. For an efficient broadband network frequencies
in the millimetre-wave range need to be used (30 – 300 GHz) and the cell size needs to be reduced to a pico (100 m) or even femto (10 m) of a cell.
The network presented is based on the transmission of a radio signal over optic fibre, namely ‘Radio over Fibre‘ (RoF). The goal is to transfer complex signal
processing functions from the base station to the central station. This decreases the costs of remote antenna units in the base station, making a larger
number of picocells a viable solution. Uneconomical radiofrequency signal processing functions such as (de)modulation, synchronisation, multiplexing,
frequency hopping, spread spectrum technology and other technologies are now located in the central station. The RF signal created in the central station
is distributed through remote base station antenna units which cover the picocells used by mobile users. This article also presents the key building
blocks of the RoF system, such as a photodiode with an integrated antenna, an electro absorption modulator, an optic millimetre-wave generator with a
phase-locked loop and an optic-controllable antenna.

- by Bostjan Batagelj and +1
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- Optical Fiber Communications, Radio over fiber, Radio-over-fibre Technologies, Radio Communications

Radio over fiber (RoF) system is a promising technique for microcell and picocell applications for deployment of future ubiquitous wireless data networks. However, the performance of RoF systems can be severely degraded due to nonlinear effects in the channel. Also, orthogonal frequency division multiplexing (OFDM), as a standard for broadband wireless networks, is being proposed for deployment with RoF systems to facilitate the total performance of a system. In this research, at first, the performance of OFDM-based RoF link with Mach-Zehnder modulator distortion effects has been analyzed at 5.8 GHz. Evaluation of mean-squared error of the proposed OFDM-RoF system was carried out to compare with the conventional single carrier system based RoF link after the modulator distortion case and also for fixed signal to noise ratio (SNR) of 20 dB using undistorted OFDM signal. Later, nominal and offset biasing pre-distortion techniques are applied in proposed system to linearize the OFDM-RoF link. Thus, finally a comparison between the aforementioned pre-distortion techniques applied showed important observation in terms of distortion-free dynamic range and SNR to choose offset predistortion technique for our proposed system