What is the meaning of Multiplexing ?

Multiplexing Definition and types:

Definition: Multi means 'Many', Plexing means 'having parts or units' combinely latin meaning suggest this but in reality this term is used for multiplexing of signals in telecommunications "Multiplexing is the procedure in which numerous Data Streams, originating from diverse Sources, are joined and Transmitted over a Single Data Channel or Data Stream."

Types of multiplexing:

1. Time division Multiplexing (TDM)

2. Frequency division Multiplexing(FDM)

3. Wavelength division multiplexing (WDM)

According to tutorialspoint Multiplexing means: "Multiplexing is a technique by which different analog and digital streams of transmission can be simultaneously processed over a shared link. Multiplexing divides the high capacity medium into low capacity logical medium which is then shared by different streams".

"Communication is possible over the air (radio frequency), using a physical media (cable), and light (optical fiber). All mediums are capable of multiplexing".

"When multiple senders try to send over a single medium, a device called Multiplexer divides the physical channel and allocates one to each. On the other end of communication, a De-multiplexer receives data from a single medium, identifies each, and sends to different receivers".

According to techtarget Multiplexing means: "Multiplexing (or muxing) is a way of sending multiple signals or streams of information over a communications link at the same time in the form of a single, complex signal; the receiver recovers the separate signals, a process called demultiplexing (or demuxing)."

What is the meaning of Multiplexing ?

Multiplexing and Multiple Access

Multiplexing And Multiple Access : Digital Communications Difference between Multiplexing and Multiple Access: Sr.No. Multiplexing Multiple Access 1 “In telecommunications and computer networks, multiplexing is a process where multiple analog message signals or digital data streams are combined into one signal over a shared medium.” “In telecommunications and computer networks, a channel access method or multiple access method allows several terminals connected to the same multipoint physical medium to transmit over it and to share its capacity.” 2 The multiplexed signal is transmitted over a communication channel, which may be a physical transmission medium. A channel-access scheme is based on a multiplex method that allows several data streams or signals to share the...

Difference in between Time division multiplexing (TDM) and Frequency division multiplexing (FDM)

Difference in between TDM and FDM: This page on FDM versus TDM describes difference between FDM and TDM multiplexing . FDM is the short form of frequency division multiplexing and TDM is the short form of time division multiplexing. In FDM each signal is modulated onto different unique RF carrier frequency and all carrier frequencies are separated significantly so that bandwidth of the signals do not overlap in frequency domain. Figure: Difference in between TDM and FDM

Call Setup GSM Flow

GSM Call Flow (GSM Originating Call) Call Setup GSM Flow Call Setup GSM Flow: • The MSC sends an Initial Address Message (IAM) to the GMSC. The IAM contains the MSISDN of the called party as the MS dialed it. • The MSC will also send a Call Proceeding (CALL_PROC) message down to the BSS and this is when the BSS would assign a TCH to the MS, as described earlier • Based on the dialed number, the GMSC decides where to route the IAM within the PSTN. • The PSTN will continue to route the IAM until it reaches the correct Switching Center and the call routing is complete. The PSTN will then establish the call circuit and send an Address Complete Message (ACM) back to the GMSC. • The GMSC then forwards the ACM back to the r...

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