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A personal communications service ( PCS) is set of communications capabilities that provide a combination of terminal mobility, personal mobility, and service profile management. [1] This class of services comprises several types of wireless voice or wireless data communications systems, typically incorporating digital technology, providing ...
Commun. Wireless Personal Communications is a peer-reviewed scientific journal published by Springer Science+Business Media. It covers mobile communications and computing and investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia. This includes propagation, system models ...
Wireless technologies can be evaluated by a variety of different metrics of which some are described in this entry. Standards can be grouped as follows in increasing range order: Personal area network (PAN) systems are intended for short range communication between devices typically controlled by a single person. Some examples include wireless ...
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IEEE standard 802.15.4 is intended to offer the fundamental lower network layers of a type of wireless personal area network (WPAN), which focuses on low-cost, low-speed ubiquitous communication between devices. It can be contrasted with other approaches, such as Wi-Fi, which offers more bandwidth and requires more power.
Personal communications network. Personal communications network ( PCN) is the European digital cellular mobile telephone network. The underlying standard is known as Digital Cellular System, which defines a variant of GSM operating at 1.7–1.88 GHz. GSM-1800 has since been adopted by other locations, not necessarily under the PCN/DCS name.
History of telecommunication. A replica of one of Claude Chappe 's semaphore towers (optical telegraph) in Nalbach, Germany. The history of telecommunication began with the use of smoke signals and drums in Africa, Asia, and the Americas. In the 1790s, the first fixed semaphore systems emerged in Europe. However, it was not until the 1830s that ...
The Personal Handy-phone System (PHS), also marketed as the Personal Communication Telephone (PCT) in Thailand, and the Personal Access System (PAS) and commercially branded as Xiaolingtong (Chinese: 小灵通) in Mainland China, was a mobile network system operating in the 1880–1930 MHz frequency band, used mainly in Japan, China, Taiwan, and some other Asian countries and regions.