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Two-way voice communications - A two-way radio is an audio transceiver, a receiver and transmitter in the same device, used for bidirectional person-to-person voice communication. The radio link may be half-duplex , using a single radio channel in which only one radio can transmit at a time. so different users take turns talking, pressing a ...
Download as PDF; Printable version; ... move to sidebar hide. Help. Wireless communication systems are systems that use wireless 'over the air' technologies to create ...
Also, low mobility users can aggregate multiple channels to get a download throughput of up to 1 Gbit/s [2] Flash-OFDM: Flash-OFDM: Mobile Internet mobility up to 200 mph (350 km/h) Flash-OFDM: 5.3 10.6 15.9: 1.8 3.6 5.4: Mobile range 30 km (18 miles) Extended range 55 km (34 miles) HIPERMAN: HIPERMAN: Mobile Internet: OFDM: 56.9: Wi-Fi: 802.11 ...
The discipline of stochastic geometry entails the mathematical study of random objects defined on some (often Euclidean) space.In the context of wireless networks, the random objects are usually simple points (which may represent the locations of network nodes such as receivers and transmitters) or shapes (for example, the coverage area of a transmitter) and the Euclidean space is either 3 ...
Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves.
Long-range optical wireless communication or free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking over long distances. "Free space" means air, outer space, vacuum, or something similar.
The IEEE P802.15 Wireless Next Generation Standing Committee (SCwng) is chartered to facilitate and stimulate presentations and discussions on new wireless related technologies that may be subject for new 802.15 standardization projects or to address the whole 802.15 work group with issues or concerns with techniques or technologies.
The Wardenclyffe Power Plant prototype, intended by Nikola Tesla to be a "World Wireless" telecommunications facility.. The World Wireless System was a turn of the 20th century proposed telecommunications and electrical power delivery system designed by inventor Nikola Tesla based on his theories of using Earth and its atmosphere as electrical conductors.