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  2. Signal transmission - Wikipedia

    en.wikipedia.org/wiki/Signal_transmission

    Antenna used for transmission of radio signals In telecommunications , transmission (sometimes abbreviated as "TX") is the process of sending or propagating an analog or digital signal via a medium that is wired , wireless , or fiber-optic .

  3. Flow control (data) - Wikipedia

    en.wikipedia.org/wiki/Flow_control_(data)

    In data communications, flow control is the process of managing the rate of data transmission between two nodes to prevent a fast sender from overwhelming a slow receiver. Flow control should be distinguished from congestion control , which is used for controlling the flow of data when congestion has actually occurred. [ 1 ]

  4. Network delay - Wikipedia

    en.wikipedia.org/wiki/Network_delay

    Graphical depiction of contributions to network delay. Network delay is a design and performance characteristic of a telecommunications network.It specifies the latency for a bit of data to travel across the network from one communication endpoint to another.

  5. Propagation delay - Wikipedia

    en.wikipedia.org/wiki/Propagation_delay

    In computer networks, propagation delay is the amount of time it takes for the head of the signal to travel from the sender to the receiver. It can be computed as the ratio between the link length and the propagation speed over the specific medium. Propagation delay is equal to d / s where d is the distance and s is the wave propagation speed.

  6. Direct-sequence spread spectrum - Wikipedia

    en.wikipedia.org/wiki/Direct-sequence_spread...

    While a transmitted DSSS signal occupies a wider bandwidth than the direct modulation of the original signal would require, its spectrum can be restricted by conventional pulse-shape filtering. If an undesired transmitter transmits on the same channel but with a different spreading sequence, the despreading process reduces the power of that signal.

  7. Data communication - Wikipedia

    en.wikipedia.org/wiki/Data_communication

    Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers, wireless communication using radio spectrum, storage media and computer buses.

  8. Fiber-optic communication - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_communication

    When a communications link must span a larger distance than existing fiber-optic technology is capable of, the signal must be regenerated at intermediate points in the link by optical communications repeaters. Repeaters add substantial cost to a communication system, and so system designers attempt to minimize their use.

  9. Comparison of synchronous and asynchronous signalling

    en.wikipedia.org/wiki/Comparison_of_synchronous...

    A pulse on one signal indicates when another bit of information is ready on the other signal. The asynchronous signalling methods use only one signal. The receiver uses transitions on that signal to figure out the transmitter bit rate (" autobaud ") and timing, and set a local clock to the proper timing, typically using a phase-locked loop (PLL ...