I'm not an EE. I'm an MLE. But because i'm working on a project that implements ML in wireless telecom, I have to understand the environment. Your videos are so clear and scientifically well described that I can learn from easily.
your videos are just awesome and the way you brief things is unbeatable , but i think you started with advanced and detailed without beginners and basics which more people needs
This is the ninth video in the series. I hope it is understandable for those who have watched the previous eight videos. More detailed videos are found in the video series of the course TSKS14 Multiple Antenna Communications.
Excellent video! I have some questions : 1- (a) You defined the outage probability here with respect to the capacity, but in a previous video, you defined it with respect to the SNR. Did you obtain the capacity's PDF in Rayleigh fading by using the capacity formula of video 3 ? (b) How did you obtain the outage probability approximation (1:56) ? 2- For wireless communications system design, what is the system parameter chosen by the user ? Is it the channel rate that, in turn, gives a certain outage probability ? If so, where does the SNR threshold comes in ?
Hi! 1. The SNR and capacity are connected as: Capacity = log2(1+SNR). I believe this is the formula that was used in Video 3. This video was originally created as a "teaser" for the following lecture (which was later recorded during the pandemic): th-cam.com/video/IuLYGIfqCA0/w-d-xo.html 2. Yes, in practice, we want to select the highest rate that we believe we can communicate at, with a desirably low outage probability. One measures the SNR, guess what the capacity is, and then select something slightly below that in the list of "modulation+coding" that is supported by the standard. I believe that 5% outage probability is a common choice for wireless broadband, while lower probabilities can be desired in low-latency scenarios where we cannot afford retransmissions.
Great video ad usual. However, may you please refer to a link to understand what the (Probability Density Function) is, which is mentioned in the curve at the minute 2:27. Thank you.
thank you for your video, but i have few questions. i am trying to find the outage probability but i dont have any value of snr so i tried to find snr however the only values that i have for noise is antenna noise, LNB noise figure, noise temp and for signal is signal availability in a yr in %. could you guide me how to find SNR and outage prob please?
Here is a video that describes the basic theory: “Lecture 3: Fading Channels and Related Capacity Concepts” th-cam.com/video/IuLYGIfqCA0/w-d-xo.html If you have questions after watching that video, you can post a comment to that video
It depends on what kind of modulation scheme and channel code you are utilizing, so there is not one correct answer but multiple options. Here is a page containing SNR thresholds for the 15 modulation-and-coding options in LTE: www.researchgate.net/post/Any_advice_on_the_Maximum_SINR_for_LTE
![Fast Fading and Ergodic Capacity [Video 10]](http://i.ytimg.com/vi/hm_iABNfTJA/mqdefault.jpg)
![Fast Fading and Ergodic Capacity [Video 10]](/img/tr.png)
![Capacity of Point-to-point SIMO and MISO Channels [Video 5]](http://i.ytimg.com/vi/WJ1e_0sIJRk/mqdefault.jpg)
![BOWKYLION - วิงวอน (ex-change) [Official MV]](http://i.ytimg.com/vi/cLdnZWDaO-w/mqdefault.jpg)
I'm not an EE. I'm an MLE. But because i'm working on a project that implements ML in wireless telecom, I have to understand the environment. Your videos are so clear and scientifically well described that I can learn from easily.
your videos are just awesome and the way you brief things is unbeatable , but i think you started with advanced and detailed without beginners and basics which more people needs
This is the ninth video in the series. I hope it is understandable for those who have watched the previous eight videos.
More detailed videos are found in the video series of the course TSKS14 Multiple Antenna Communications.
@@WirelessFuture always i appreciate your videos
Very clear and nice explanation. May Allah bless your soul
Love the way u teach...and contents also too good..waiting for ur next vdo..
Excellent video! I have some questions :
1-
(a) You defined the outage probability here with respect to the capacity, but in a previous video, you defined it with respect to the SNR. Did you obtain the capacity's PDF in Rayleigh fading by using the capacity formula of video 3 ?
(b) How did you obtain the outage probability approximation (1:56) ?
2- For wireless communications system design, what is the system parameter chosen by the user ? Is it the channel rate that, in turn, gives a certain outage probability ? If so, where does the SNR threshold comes in ?
Hi!
1. The SNR and capacity are connected as: Capacity = log2(1+SNR). I believe this is the formula that was used in Video 3.
This video was originally created as a "teaser" for the following lecture (which was later recorded during the pandemic): th-cam.com/video/IuLYGIfqCA0/w-d-xo.html
2. Yes, in practice, we want to select the highest rate that we believe we can communicate at, with a desirably low outage probability. One measures the SNR, guess what the capacity is, and then select something slightly below that in the list of "modulation+coding" that is supported by the standard. I believe that 5% outage probability is a common choice for wireless broadband, while lower probabilities can be desired in low-latency scenarios where we cannot afford retransmissions.
Great video ad usual. However, may you please refer to a link to understand what the (Probability Density Function) is, which is mentioned in the curve at the minute 2:27. Thank you.
Sure, Wikipedia is a great source when it comes to probability theory: en.m.wikipedia.org/wiki/Probability_density_function
Can you please link a source from where this graph at 5:01 has been adopted? I am unable to find the same. Can you please help me with this Emil?
The figure isn't published, but please send an email to Emil and he can provide you with the source material.
@@WirelessFuture Sure, Thank you Sir
thank you for your video, but i have few questions. i am trying to find the outage probability but i dont have any value of snr so i tried to find snr however the only values that i have for noise is antenna noise, LNB noise figure, noise temp and for signal is signal availability in a yr in %. could you guide me how to find SNR and outage prob please?
Here is a video that describes the basic theory: “Lecture 3: Fading Channels and Related Capacity Concepts” th-cam.com/video/IuLYGIfqCA0/w-d-xo.html
If you have questions after watching that video, you can post a comment to that video
What will be threshold SNR for an IoT link operating in an industrial setup?
It depends on what kind of modulation scheme and channel code you are utilizing, so there is not one correct answer but multiple options. Here is a page containing SNR thresholds for the 15 modulation-and-coding options in LTE: www.researchgate.net/post/Any_advice_on_the_Maximum_SINR_for_LTE
@@WirelessFuture Thanks a bunch! More power to your pen!!