نتایج جستجو برای: telecommunications and communications
تعداد نتایج: 16835204 فیلتر نتایج به سال:
Institute of Telecommunications Mobile Communications Department Telecommunications Master programme Implementation and evaluation of FD-MIMO beamforming schemes for highway scenarios by Félix Pablo CANO PAÍNO With the widespread growth of urban environments and the appearance of vehicleto-X access communications, new techniques have emerged to overcome this densification matter. One promising ...
Product standards have become increasingly important due to increased technological complexity. A barrier to implementing intelligent transportation systems (ITS) technologies has been the development of compatible products and systems. Telecommunications infrastructure has been considered one of the core elements of ITS. Relevant communications options include wireline, wireless and dedicated ...
Cellular Mobile Communications have become an essential part of the world telecommunications. However, the systems suffer from multipath propagation effects. In this paper, we calculate the probability of symbol error rate and bit error rate of M-ary Quadrature Amplitude Modulation (M-QAM) over slow, flat, identically independently distributed Rayleigh fading and additive white gaussian channel...
The application of software agent technology to the management of communications’ infrastructures is a challenging domain as it requires management on different time scales and has many interacting components. This paper looks at the potential benefits that may be gained from the application of agent technology to communications systems and surveys recent developments. Recent work using distrib...
¶1 For most of the last century, only a few questioned the sacrosanct and sovereign role of states in telecommunications regulation. In the wake of the 1996 Telecom Act and the rise of the Internet, some commentators and policymakers are just starting to challenge this view, but none has emphasized how the changes in technology—as opposed to economics or policy—warrants such a re-examination. B...
The International Telecommunications Satellite Organization (INTELSAT), the 109-nation cooperative responsible for the vast majority of international satellite service, was recently presented with what may be its greatest challenge since its inception over twenty years ago. The consortium, hailed by many as a model among international organizations, faces possible competition from five American...
Middleware promises seamless integration of heterogeneous networks and computing/telecommunications environments by providing distributed services to user applications. With Low Earth Orbit satellite networks being deployed as communications infrastructure, it is important that middleware can operate efficiently over these networks. For applications to have good performance, efficient and robus...
The provision and support of new distributed multimedia services are of prime concern for telecommunications operators and suppliers. Clearly, the potential of the latest Internet protocols to contribute communications components is of considerable interest to them. In this paper we present three of the major new protocols introduced into the Internet environment to support real-time and multim...
The quadrature modulator is a fundamental radio component for worldwide digital wireless communication standards such as Global System for Mobile Communications (GSM), Digital Communications SystemsÐ1800 MHz (DCS1800), Digital European Cordless Telecommunications (DECT), American and Personal Digital Cellular (ADC/PDC), Japanese Personal Handy Phone (PHP RCR28). A typical system application and...
The world of telecommunications, especially mobile communications, continues to evolve with innovative technologies and high-speed data services. In many economies, mobile phones have overtaken fixed lines. In this dynamic context, we have envisaged to study mobile communication diffusion in Germany and India, from a historical comparative perspective. The basic standard for comparison has been...
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