multiplexeren

Multiplexeren is a process used in telecommunications and computing to combine multiple signals or data streams into a single signal for transmission over a shared medium. This technique is essential for optimizing the use of bandwidth and resources, allowing multiple users or devices to share the same communication channel simultaneously. Multiplexing can be achieved through various methods, including time-division multiplexing (TDM), frequency-division multiplexing (FDM), and code-division multiplexing (CDM).

In time-division multiplexing, different signals are transmitted in successive time slots. Each signal occupies the full bandwidth of the channel but only for a short duration. This method is commonly used in digital systems, such as synchronous digital hierarchy (SDH) and synchronous optical networking (SONET).

Frequency-division multiplexing involves dividing the available bandwidth into multiple frequency bands, with each signal occupying a different band. This technique is widely used in analog systems, such as cable television and radio broadcasting.

Code-division multiplexing uses unique codes to distinguish between different signals. Each signal is spread over the entire bandwidth, but the codes ensure that the signals do not interfere with each other. CDM is employed in technologies like code-division multiple access (CDMA), which is used in mobile communications.

Multiplexing is crucial for efficient data transmission and resource management in modern communication systems. By combining multiple signals into a single stream, multiplexing enables the simultaneous transmission of data, voice, and video over a shared medium, enhancing overall network performance and capacity.