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Let us learn some of the basic information about the time-division multiplexing and different types of multiplexing in it. The time-division multiplexing can be of two types. It can be statistical time division multiplexing and frequency division multiplexing. Before we discuss the different types of multiplexing. Let us study what actually the multiplexing is?. Multiplexing is a combination of multiple signals.

We combine multiple signals together and travel parallel through a single link. The main purpose of using multiplexing is to sharing the different signals simultaneously. It can be in the form of digital signals that pass over one link to the other. It passes the signals by diving the signals into different slots.

Each slot has different time intervals. We assign these signals equally to the different users. To understand in detail the concept of time-division multiplexing, let us take an example. Let say, by using the time-division multiplexing concept, we have three different types of users present in it. If three different users want to send the data to the receiver side, during the transmission of the data, the data is divided into different time slots, we call these parts the segments.

The segments are also called the time slots or they can be called the intervals. Now we assign these time slots equally and sent them simultaneously. After it reaches the receiving end, the demultiplexer separates them. The main advantage of the time-division multiplexing is its equality, we assign the same amount of time. It doesn’t work efficiently in many of the cases, we allocate the same amount of time for every user we allocate.

Let us take an example to understand the concept in more detail, some users may consist of a high amount of data in it or it can have high priority than the other data. Even though irrespective of the high priority and the high amount of the data, the same time is given to all the users. So the time-division multiplexing doesn’t work very efficiently and not cost-effective. So we use a method called statistical time-division multiplexing. The statistical time division multiplexing can analyze the statistics of the work that relates based on the workload, we analyze the statistics based on the priorities and the workload we have.

It can determine how much time each user can get based on the workload it has. To understand the concept of the statistical multiplexing concept clearly, let us take an example to suppose is User A wants to send the information to the User B and if User A has a high workload then the remaining users like User B and User C, so the multiplexing concept make sure to give provide the User A most of the time slots. When we compare the statistical division multiplexing with simple time-division multiplexing, the statistical division multiplexing has more control and works more efficiently than simple time-division multiplexing.

We have another type of multiplexing called frequency division multiplexing. In the frequency division multiplexing, we deal with the transmission using analog signals. It uses analog signals instead of digital signals. To understand the concept of frequency division multiplexing, let us take an example.

We have two different types of Users that send the data by using the same channel, now this FDMA combines all these analog signals together and can send the signals simultaneously that they travel separately by their own overlapping sub-channels. Hence the Frequency division multiplexing users have non-overlapping channels in it. Simple the Time-division multiplexing is all about the time allocation for the transmission of the data.