FDM, OFDM, OFDMA, SC-FDMA Concept

In telecommunications, frequency-division multiplexing (FDM) is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal.
In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission and a method of encoding digital data on multiple carrier frequencies. In OFDM, multiple closely spaced orthogonal subcarrier signals with overlapping spectra are transmitted to carry data in parallel.
#fdm #fdma #ofdm #ofdma #scfdma #telecommunications #wireless

[@ChimpDeamon]

Thanks. SC-FDMA needed more explanation.

[@aminsedighfar]

Thanks for your feedback.

[@shakerzayani7655]

Nice bro👍

[@aminsedighfar]

Thanks 🙏🏻

[@abdulrahmanalmeqdad8111]

I didn't get what's the different between FDM and FDMA, and same for TDM and TDMA

[@abdulrahmanalmeqdad8111]

You mentioned FDMA then you give every user a different frequency and take them to multiplexer, but this one is FDM not FDMA but u mention FDMA , Could you eleborate it more plz? As I still don't know what's the different between multiplexing process and multiple access process??!!

[@aminsedighfar]

Frequency-division multiplexing (FDM) is also distinct from FDMA. FDM is a physical layer technique that combines and transmits low-bandwidth channels through a high-bandwidth channel. FDMA, on the other hand, is an access method in the data link layer.

[@abdulrahmanalmeqdad8111]

@@aminsedighfar okey bro, I got it, thanks alot

[@aminsedighfar]

@@abdulrahmanalmeqdad8111 no problem 🙏🏻👍🏻