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TDMA frame structure showing a data stream divided into frames and those frames divided into time slots. Time-division multiple access (TDMA) is a channel access method for shared-medium networks. It allows several users to share the same frequency channel by dividing the signal into different time slots. [1]
TDMA may refer to: TDMA, an MDMA analogue; Time-division multiple access, a channel-access scheme; Tridiagonal matrix algorithm, a mathematical system;
MF-TDMA ("Multi-frequency time-division multiple access") is a technology for dynamically sharing bandwidth resources in an over-the-air two-way communications network. See also [ edit ]
Time-division multiple access (TDMA) divides a channel into frames, which furthermore are subdivided into a vast number of time slots. Users transmit in rapid succession, one after the other, each using their own time slot. One of the drawbacks of TDMA is that it requires a central station for slot assignment and time synchronization.
Vietnam is putting considerable effort into modernization and expansion of its telecommunication system. Domestically, all provincial exchanges are digitalized and connected to Hanoi, Da Nang and Ho Chi Minh City by fiber optic cable or microwave radio relay networks. Main lines have been substantially increased, and the use of mobile ...
Nicotinamide, a form of vitamin B3 found in food and used as a dietary supplement; North American Mesoscale Model, a short-term weather forecasting model; Northern Annular Mode, a climate pattern; Number Assignment Module, where phone number etc. is stored; Network Access Module, a wall connection outlet with Ethernet network plugs
QDMA is used for local area networks, usually wireless short-range such as WiMax. CDMA and QDMA are especially suitable for modern communications, for example, the transmission of short messages such as SMS or MMS; communication when in motion (from cars, trains, etc.); the establishment of unplanned links.
Vietnam Electricity (EVN; Vietnamese: Tập đoàn Điện lực Việt Nam, lit. 'Vietnam Electricity Group') is the national and the sole public power company in Vietnam . It was established by the government of Vietnam as a state-owned company in 1994, and has operated officially as a one-member limited liability company since 2010.