A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. The benefit of a satellite communications network lies in its ability to link users to voice, …
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Public safety organizations and many other professionals need to communicate when coordinating operations and tasks. Critical Communication is essential to react and respond effectively and at the core of the functioning of emergency services. Critical communications include mobile, radio telecommunication systems and devices that must provide reliable and secure communication at …
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Countries are now racing to deploy 5G, short for 5th generation mobile networking or 5th generation wireless systems. The Fifth Generation (5G) mobile networks promise fast Internet for everyone, smart cities, driverless cars, critical health care, “internet of things” revolution, and reliable and secure communications for critical infrastructures and services. The …
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Backscattering is a form of wireless transmission based on modulated reflection of external RF signals. Whereas conventional radios generate their own signals, backscatter radios transmit data by making tiny changes to reflected signals. This approach requires a minimal number of active components, promising simple low-cost battery-free operations. Since the source …
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Quantum technologies have the potential to spur revolutions in computing, sensing, cryptography and beyond. Quantum computing and quantum communication are believed to be the future of information technology. Single-photon sources are important for current research in quantum information, cryptography, and the production of truly random numbers. The possibility of …
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Globalization has opened the doors for trade across the world and it has thus become necessary for ships to be equipped with the latest forms of communication and technology. Communication is vital for the safe navigation and management of ships. Marine communication involves ship-to-ship and ship-to-shore communication. Cell phones are …
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Integrated circuits and power devices utilized by the semiconductor industry for the production of advanced computers, consumer electronics, communication networks, and industrial and military systems have been almost exclusively based on silicon technology. The requirements of future electronics place a great emphasis on achieving new devices with greater power density …
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Mobile robots used by the military and law enforcement agencies require a robust communications link for successful mission executions. Such mobile robots are increasingly used in life-threatening situations and hazardous environments, rendering a solid communications link to be of vital importance. Tactical mobile robots used in military and law enforcement operations …
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Satellite communication is a technology that is used to transfer the signals from the transmitter to a receiver with the help of satellites. Communications via satellite have the unique characteristic of the ability to cover the globe with a flexibility that cannot be duplicated with terrestrial links. Mobile satellite service …
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It is predicted that LEDs will be the ultimate light source in the near future powering indoor illumination, outdoor lamps, traffic signs, advertising displays, car headlights/taillights, etc. Now another technique promises to double the utility of light-emitting diodes (LEDs) by using their light as a medium for communication in a …
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