difference between tdma cdma fdma in tabular form pdf
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request about difference between tdma,fdma,cdma in tabular form pdf
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tdma,cdma,fdma,difference in tabular form pdf
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Difference between FDMA, CDMA and TDMA


Frequency Division Multiple Access (FDMA):

It is a technology by which the total available bandwidth for the system is divided into frequencies. This division is performed between the non-overlapping frequencies assigned to each communication pair (2 telephones)
FDMA is mainly used for analog transmission. It is not that this technology is not capable of carrying digital information, but only that it is not considered an efficient method for digital transmission. Why imagine if the frequencies to handle the clients are exceeded? What if more capacity is required? The only option would be to deepen the existing frequencies to a much narrower amount that will not be very competent. In FDMA all the users share the satellite simultaneously, but each user transmits to a single frequency.
To better understand this technology, imagine how FM radio works. All radios have their own frequency bands and send their signals to the carefully assigned single frequencies within the available bands.

Code Division Multiple Access (CDMA):

Unlike FDMA, CDMA separates calls by code. Each bit of a conversation has been tagged with a specific and unique code. The system gets a call, assigns a unique code to that particular conversation, now the data is divided into small parts and labeled with the unique code given to the conversation of which they are part. Now, these data in small pieces are sent over a number of discrete frequencies available for use at any time in the specified range. The system, in the end, reassembles the conversation of the coded bits and delivers them. Makes sense?
Think about how you remember your luggage at the end of the trip. When you register, you are given a tag with a code that is also given to your luggage. And at destination, pick up your luggage based on thatJ I know you will say that I recognize your bag, but then I have a habit of always matching the codes of my bag and the tag I have been given and that is how I assure myself Not picking up bad luggage

Time division multiple access (TDMA):

Unlike FDMA and CDMA, in TDMA the division of calls occurs in time. The system digitizes calls for the first time and then combines those conversations into a unified digital stream on a single radio channel. It now divides each cellular channel into three time slots, which means that three calls are put on a single frequency and then a time slot is assigned to each call during the conversation, a regular space in a digital stream. Users transmit in rapid succession, one after another, each using its own time interval. This allows multiple stations to share the same transmission medium (for example, a radio frequency channel) while using only part of their channel capacity.
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