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Power-division multiple access (PDMA) scheme is based on using variable transmission power between users in order to share the available power on the channel. Examples include multiple SCPC modems on a satellite transponder, where users get on demand a larger share of the power budget to transmit at higher data rates.
Channel expansion theory (CET) states that individual experience serves as an important role in determining the level of richness perception and development towards certain media tools. It is a theory of communication media perception that incorporates experiential factors to explain and predict user perceptions of a given media channel. The ...
Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel.
The inter-cell interference in cellular wireless communications is an example of an interference channel. In spread-spectrum systems like 3G, interference also occurs inside the cell if non-orthogonal codes are used. A unicast channel is a channel that provides a unicast service, i.e. that sends data addressed to one specific user.
Media multiplexity theory was a concept developed by Caroline Haythornthwaite, based on her observations in organizational and educational settings. The theory posits that the more communication channels one uses with another person, the stronger the bond with that person.
Synchronous channels are helpful for urgent situations especially in more vulnerable areas, while asynchronous channels are useful for governments and utility service providers in their attempts to amplify their crisis management messages and expand the reach of information related to evacuation and recovery.
Media enterprises with cross-media utilization competences can provide content to the recipients in a timely manner, in the desired amount and via the right channel. Finally the technology competence refers to the employment of modern information and communication technology for the creation and marketing of content.
PowerVu is a conditional access system for digital television developed by Scientific Atlanta. [1] It is used for professional broadcasting, notably by Retevision, Bloomberg Television, Discovery Channel, AFRTS, ABS-CBN, GMA Network, and American Forces Network.