time division multiplexing


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time division multiplexing

(communications)
(TDM) A type of multiplexing where two or more channels of information are transmitted over the same link by allocating a different time interval ("slot" or "slice") for the transmission of each channel. I.e. the channels take turns to use the link. Some kind of periodic synchronising signal or distinguishing identifier is usually required so that the receiver can tell which channel is which.

TDM becomes inefficient when traffic is intermittent because the time slot is still allocated even when the channel has no data to transmit. Statistical time division multiplexing was developed to overcome this problem.

Compare wavelength division multiplexing, frequency division multiplexing, code division multiplexing.
References in periodicals archive ?
The unified platform, which provides network management, policy management, intelligent routing and real-time billing capabilities, now offers wholesale carriers transitioning from Time Division Multiplexing (TDM) switches to Internet Protocol-based (IP- based) communications networks with the means to increase network reliability, lower operating costs and support multimedia applications.
Additionally, the DISA Unified Capabilities Certification Office has approved multiple end-user devices, software products, clients, and network devices for procurement by Army to transition existing Time Division Multiplexing telecommunications to Voice over Internet Protocol.
Pulse broadening and recompression become significant factors with the continuous increase in transmission rate are needed to be addressed [4].the most dominant nonlinear effect in high speed optical transmission systems such s time division multiplexing (TDM) [5] and novel mapping multiplexing [6] is self phase modulation that occurs due to the fiber refractive index dependence on pulse intensity.
A number of researches focus on the Wavelength Division Multiplexing (WDM), Time Division Multiplexing (TDM), Space Division Multiplexing (SDM), Frequency Division Multiplexing (FDM), Code Division Multiple Access (CDMA) or other combination mode to realize the FBG multiplexing network and the sensor node tracking.
This first of two volumes cover components and subsystems, exploring such topics as semiconductor photonic integrated circuit transmitters and receivers, few-mode fiber technology for spatial multiplexing, integrated and hybrid photonics for high-performance interconnects, implementing aspects of coherent transmit and receive functions in application-specific integrated circuits, and ultra-high-speed optical time division multiplexing. Earlier editions were published between 1979 and 2008.
The company said that T-Mobile's network migration from TDM (Time Division Multiplexing) to high-performance packet networking based on MPLS-TP (Multiprotocol Label Switching Transport Profile) will be simple and cost-effective, with a complete end-to-end managed mobile backhaul solution.
SK Broadband's existing transport network based on the MSPP (Multi Service Provisioning Platform) technology was designed primarily to transmit legacy TDM (Time Division Multiplexing) traffic.
KARACHI, October 01, 2011 (Frontier Star): PTCL is upgrading its Telephone Exchanges from Time Division Multiplexing (TDM) based technology to latest Next Generation Network (NGN) technology for providing better and improved services to its valued customers.
Islamabad -- Pakistan Telecommunication Company Limited (PTCL) is upgrading its telephone exchanges from Time Division Multiplexing (TDM) based technology to latest Next Generation Network (NGN) technology for providing better and improved services to its valued customers.
ISLAMABAD, June 29, 2011 (Balochistan Times): Pakistan Telecommunication Company Limited (PTCL) is upgrading its Telephone Exchanges from Time Division Multiplexing (TDM) based technology to latest Next Generation Network (NGN) technology for providing better and improved services to its valued customers.
Another solution, is time division multiplexing, in which certain networks will be active during certain points with more important networks getting priority.
The existing infrastructure based on analog and digital exchanges and Time Division Multiplexing (TDM) will be replaced by IP softswitches and media gateways, the company said.

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