What is Multiplexing | Demultiplexing | Types of Multiplexing | Mux and Demux | Urdu | Hindi
Multiplexing refers to the process of combining multiple signals or data streams into a single signal over a shared medium, allowing the transmission of multiple signals simultaneously. This technique is commonly used in telecommunications and computer networks to optimize the use of available resources such as cables, wireless frequencies, or network links.
There are several types of multiplexing techniques:
Time-Division Multiplexing (TDM): In TDM, multiple signals are transmitted one after another in a round-robin fashion within fixed time slots. Each signal is allocated a specific time slot, and the combined signal is transmitted over the medium. At the receiving end, the original signals are extracted by demultiplexing based on the timing information.
Frequency-Division Multiplexing (FDM): FDM involves dividing the available frequency spectrum into multiple non-overlapping frequency bands. Each signal is allocated a distinct frequency band, and these signals are combined for transmission over the medium. At the receiver, demultiplexing separates the signals based on their assigned frequencies.
Wavelength-Division Multiplexing (WDM): WDM is a technique primarily used in optical fiber systems. It operates similarly to FDM but with optical wavelengths instead of frequency bands. Multiple signals are sent simultaneously through the same optical fiber, each using a specific wavelength of light. This allows for high data transmission rates in optical communication systems.
Code-Division Multiplexing (CDM) or Code-Division Multiple Access (CDMA): CDMA assigns a unique code to each signal to be transmitted. These codes are spread across the entire bandwidth, allowing multiple signals to coexist and be transmitted simultaneously. At the receiver, the signals are separated using their respective codes.
Multiplexing offers advantages such as efficient use of resources, increased data transmission capacity, and reduced infrastructure requirements. It is widely used in telecommunications, networking, satellite communication, and various other fields where the transmission of multiple signals over a shared medium is essential.
What is multiplexing?
What is demultiplexing?
Why we use multiplexing?
What are the types of multiplexing?
What is TDM?
What is FDM?
What is CDMA?
What is WDM?
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Academy of Technology
Academy of Technology is an online resource in Urdu and Hindi languages.
The website focuses on providing quality video lectures and notes related to topics. Our aim is to help people by giving them comprehensive information and techniques to improve their knowledge in computer and communication networking. Our focused audience is beginner level but some topics need some background.We are opening doors for everyone to get some knowledge.Our target study areas are
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MS Computer and Communication Networks
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