Thank you for your helpful talk. I really respect Erik for his challenging questions and I think he is right about ray tracing modeling of the channel. It may not be practical
On the problem of having a trained receiver, if you can benchmark it well and have gains in terms of implementation complexity, it makes a lot of sense.
I haven't heard about any minimum requirements. You can for instance run all the code in Google Colabs and then it is their available resources that determines the speed. But I'm sure the run times are much shorter if you have a computer with an Nvidia GPU... :)
I believe the standard approach is to define a minimum coherence time and send pilots according to that. This will result in that many users send pilots too frequently, but a clever implementation could utilize multiple pilots to obtain better estimates. Since the transmission is divided into slots, one has to send one pilot per slot so that it is possible to start and end a transmission in any slot.
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Thank you for your helpful talk. I really respect Erik for his challenging questions and I think he is right about ray tracing modeling of the channel. It may not be practical
On the problem of having a trained receiver, if you can benchmark it well and have gains in terms of implementation complexity, it makes a lot of sense.
Great discussion.
Excellent podcast..! Erik at 34:00 is thought provoking,!
hello professor
I need some dots Recommendation for IRS tech
What kind of a processor and PC specs do I need to set up Sionna?
I haven't heard about any minimum requirements. You can for instance run all the code in Google Colabs and then it is their available resources that determines the speed. But I'm sure the run times are much shorter if you have a computer with an Nvidia GPU... :)
@@WirelessFuture Alright, thank you for getting back. I like the content you're airing, keep it up. cheers!
I have a short differing question. How often is a piltot sent? Does that vary over time? Is It perhaps sent once within coherence time?
Thanks.
I believe the standard approach is to define a minimum coherence time and send pilots according to that. This will result in that many users send pilots too frequently, but a clever implementation could utilize multiple pilots to obtain better estimates. Since the transmission is divided into slots, one has to send one pilot per slot so that it is possible to start and end a transmission in any slot.
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