Tell about difference b/w tdma fdma cdma

The difference between FDMA, CDMA and TDMA
I think one of the most fundamental questions in our minds is What the difference is between telecom technologies, which said company focusing on machines about people? Right? They say the company focusing on machines about CDMA, TDMA, FDMA! We know that these technologies are different, but we are genearlly not able to understand the difference, making them! We believe that it is too technical and stop yourself from getting into it! Right? Guys, trust me, understanding the difference between the technologies is just not difficult!

I'll try to put it in very simple wayJ

Frequency division multiple access (FDMA):
This is a technology that the full available bandwidth for the system is divided into frequencies. This Division is made between non-overlapping frequencies, which are then assigned to each n from couples (2 numbers)
FDMA is used mainly for analog. Its not what ESTA is not is capable of carrying digital information, but simply that he is not considered to be an effective method for digital transmission. Because just imagine if frequency for processing customers gets more? What if more space is required? the only option will update existing frequencies go to the smaller quantity, which is not very competent. In FDMA satellite simultaneously to all users of the wireless transmission, but every user on one frequency.
Understanding ESTA technology better, just imagine how FM radio works. All radio-frequency group have their own, and they send signals at frequencies of Carefully selected, unique within the existing lanes.

With code division multiple access (CDMA):
In CONTRAST, FDMA, CDMA, divides the calls from your code. Every bit of the conversation were marked with a specific and unique code system receives a call, it allocates a unique code for that particular conversation, now the data is divided into small parts and is marked with a unique code given to conversation, from which they come. Now, esta data is transferred in small pieces for a number of discrete frequencies that are available for use at any time in the specified range. the system then collects at the end of the conversation with the coded bits and deliver ITJ this make sense?
Just think how you remember the company focusing on machines about your luggage at the end of flight travel. During registration, tag ID which is given to you With your luggageJ está También and at destination, you collect your luggage from thatJ I know you will say that you'll Recognize her bag, but then I est′privyčka always matching codes of my bag and one by tag: given to me and I'm not sure it is picking up the wrong luggageJ

Time Division Multiple Access (TDMA):
In CONTRAST, FDMA and CDMA, TDMA, see call occurs on an ongoing basis. the system digitizes the first calls, and then combine these conversations into a single digital stream along the radius of a single channel. Now divide each cellular channel into three time slots this means that three calls get put on one frequency, and then, the time interval for each call, assigned during a call, adjust the space in the form of a digital stream. Users transmit in rapid succession, one after the other, each of which uses its own time slot. This allows multiple stations to share (for example, the frequency of the radio channel) the same transmission medium, using only a fraction of the bandwidth of STIs.
This technology allows three different users to use the same frequency at the same time.
Here there is no need for three separate frequencies, as in the FDMA. As in the FDMA, instead monopolizing one wireless channel for one call, TDMA is effectively implementing three calls in the same timeJ
By the way, esta technology that is used in our system GSM