Wireless communication is the transfer of information between two or more points that are not directly connected by an electrical conductor. There is one of most common wireless technologies uses radio waves. With radio waves distances can be short, such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. Wireless communicati...

This paper tackles the RFID based tracking problem in an obscured indoor environment. The proposed solution is an integral part of a navigation aid for guiding visually impaired people in a store. It uses RF signal strengths and is based on the Bayes Decision Theory. An observation vector is formed by received radio signal strength indication values, transmitted from three transmitters at disti...

The FM band (87.5-108 MHz) is home to a large number of radio programmes, and is still the main means of radio broadcasting in Europe. However, the FM band is fully allocated and therefore cannot offer a basis for increased diversity in the radio broadcasting landscape, nor can it offer an increase in the coverage areas of the broadcasters already licensed. Local radio as well as community and ...

A novel transport system, with directly modulating community antenna television (CATV) signal downstream and phase-remodulating radio-over-fiber (ROF) signal upstream, is proposed and experimentally demonstrated. By modulating multi-carriers CATV signal in amplitude domain and ROF signal in phase domain, a single optical wavelength is able to serve these two applications simultaneous. To be the...

background health is a basic human right necessary for the exercise of other human rights. every human being is, therefore, entitled to the highest possible standard of health necessary to living a life of dignity. establishment of patients’ charter is a step towards protecting the rights and responsibilities of patients, but violation of patients’ rights is common in healthcare institutions, e...

The development of what one might call ‘modern’ systems of information and communication began with the Gutenberg printing press in the 15 century, and progressed through the prepaid postal system, electric telegraph and telephone in the 19 century, radio and television broadcasting in the 20 century, and most recently the Internet. This essay focuses on the response of governments to these inn...

In this paper, facial expressions of the three Turkish presidential candidates Demirtas, Erdogan and Ihsanoglu (in alphabetical order) are analyzed during the publicity speeches featured at TRT (Turkish Radio and Television) on 03.08.2014. FaceReader is used for the analysis where 3D modeling of the face is achieved using the active appearance models (AAM). Over 500 landmark points are tracked ...