نتایج جستجو برای: radio and tv networks
تعداد نتایج: 16922542 فیلتر نتایج به سال:
In recent years, Telcos worldwide have deployed IPTV networks to offer cable TV-like services over the IP backbones. Such walled garden IPTV networks are provisioned to guarantee the quality of service, fast channel switching, and user experience expected by TV viewers. A common key design element of these networks is the use of IP multicast within a single network domain in broadcasting of sev...
The demand of bandwidth has increased in recent years with the advent of new technologies in wireless communication systems along with the rise of traffic flow. This has resulted the radio spectrum into a scarce entity. However, recent measurements suggest that some part of the licensed spectrum is not efficiently utilized due to static spectrum allocation. TV broadcast systems operating in lic...
methodology non-native participants in this study were sixty ba students majoring in english literature and teaching english as a foreign language at khayyam university of mashhad. they were senior students, between 21 to 24 years old, who had studied english for at least three and a half years and had passed several courses including grammar, reading, conversation, and writing. this was assum...
White-Fi refers to WiFi deployed in the TV white spaces. Unlike its ISM band counterparts, White-Fi must obey requirements that protect TV reception. As a result, optimization of citywide WhiteFi networks faces the challenges of heterogeneous channel availability and link quality, over location. The former is because, at any location, channels in use by TV networks are not available for use by ...
As more user applications emerge for wireless devices, the corresponding amount of traffic is rapidly expanding, with the corollary that ever-greater spectrum capacity is required. Service providers are experiencing deployment blockages due to insufficient bandwidth being available to accommodate such devices. TV White Space (TVWS) represents an opportunity to supplement existing licensed spect...
Bangladesh Open University (BOU) is the only national institution in Bangladesh which is catering distance education in the country. It has extensive network through out the country to provide readily accessible contact points for its learners. After passing of 15 years since its inception, BOU has lagged behind in using technologies. In consideration of its limit to conventional method in teac...
The Internet of Things (IoT) is a very encouraging and fast-growing area that brings together the benefits of wireless systems, sensor networks, actuators, etc.A wide range of IoT applications have been targeted and several aspects of this field have been identified to address specific issues, as well as technologies and standards developed in various domains such as in radio frequency id...
Mes daghin ia A1, Yunesian M2, Naseri S1, Jafari A3, Moradi A4, Farahdoust F5, Yaghoubi L6 1. Professor, Department of environmental health, Faculty of public health and institute of health research, Tehran University of medical sciences 2. Assistant professor, Department of environmental health, Faculty of public health and institute of health research, Tehran University of medical scie...
In the following paper the perspectives of spatial development of digital broadcasting in Slovenia will be presented. Digital broadcasting will be considered in two main streams – digital audio broadcasting and digital video broadcasting, both in the terrestrial mode. In the field of digital radio, T-DAB frequency block allotments were already coordinated at the Wiesbaden planning conference in...
This study was carried at Ilongero ward in Singida District council to assess the determinants of land ownership among women. used both qualitative and quantitative data from primary secondary sources. Primary were collected Data using interview method which administered by questionnaire tool checklist. A sample 150 respondents drawn through simple random sampling. Statistical Package for Servi...
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