in multiplexing, are the multiple signals coming from multiple users or different users? when my professor asked me what is fdma, I said it is a process of allocating different bands within the same channel between different users, and he said this is multiplexing not multiple access. tell me the difference between fem and fdma please I have my presentation for this within 2 days, please respond to me.
It really depends on the definition of "the channel". In Multiplexing, as I said in the video, all the different streams are put together in a multiplexer. That's an actual device (or chip). The different streams generally come from different users, but they could also be parallel low rate streams from a single user. In Multiple Access, the users all send their signals separately into the channel (not through a single device). For example, different mobile phones each sending their signal. They are all using the same "channel" but are not "multiplexed" through a single device.
My professor tells that TDMA uses TDM, but the difference is in TDMA we use allocation method/ algorithm, and he wants me to explain that in my presentation, what is that allocation method or algorithm? Also in the class, he has shown me an example where he has taken two signals and he compressed those two signals and sorted out them in the different time slot, user 1 takes slot 1 and user 2 takes slot 2(he combined those two signals in one signal and has shown me that it is multiple access, from 0 to t1 is user1, from t1 to t2 is user2, from t2tot3 is user1, vice versa) can you please explain me.
Thanks for the suggestion, I'll add it to my "to do" list. In the meantime, you might like to watch my video on MU-MIMO which is one of the main techniques for SDMA: "What is Multi-User MIMO Communications (MU MIMO)?" ua-cam.com/video/0ncIWlhsu1A/v-deo.html
are the multiple signals coming from multiple users or different users?
"Multiple users" are "different users".
Thanks for clarifying my doubt sir.
You're welcome.
What type of modulation are used in TDMA
Can data streams in input at the MUX have different bitrate? thanks
In general, yes. But it depends on the actual hardware implementation of the MUX.
in multiplexing, are the multiple signals coming from multiple users or different users?
when my professor asked me what is fdma, I said it is a process of allocating different bands within the same channel between different users, and he said this is multiplexing not multiple access.
tell me the difference between fem and fdma please
I have my presentation for this within 2 days, please respond to me.
It really depends on the definition of "the channel". In Multiplexing, as I said in the video, all the different streams are put together in a multiplexer. That's an actual device (or chip). The different streams generally come from different users, but they could also be parallel low rate streams from a single user. In Multiple Access, the users all send their signals separately into the channel (not through a single device). For example, different mobile phones each sending their signal. They are all using the same "channel" but are not "multiplexed" through a single device.
What allocation algorithm is used in tdma?
My professor tells that TDMA uses TDM, but the difference is in TDMA we use allocation method/ algorithm, and he wants me to explain that in my presentation, what is that allocation method or algorithm? Also in the class, he has shown me an example where he has taken two signals and he compressed those two signals and sorted out them in the different time slot, user 1 takes slot 1 and user 2 takes slot 2(he combined those two signals in one signal and has shown me that it is multiple access, from 0 to t1 is user1, from t1 to t2 is user2, from t2tot3 is user1, vice versa) can you please explain me.
Hello, Iain. Could you tell us the principles of SDMA in this playlist? Thanks
Thanks for the suggestion, I'll add it to my "to do" list. In the meantime, you might like to watch my video on MU-MIMO which is one of the main techniques for SDMA: "What is Multi-User MIMO Communications (MU MIMO)?" ua-cam.com/video/0ncIWlhsu1A/v-deo.html
Thank you so much for all your videos! It is extremely helpful!
Glad you like them!
Excellent video. Thank you for all your efforts.
Thanks. Glad you found it useful.
Super sir
thank you
ua-cam.com/video/4uJBzKeaiGM/v-deo.html
Awesome! 👏 👏👏
Glad you liked it.
Thank you!
You're welcome!
I could not understand