linux-80211n-csitool-supplementary
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dhalperi
How to Plot CSI Data in to Time domain
Hello Everybody, Can anyone indicate how to plot CSI data into time domain?
thank in advance.
@azizshahics i also want to plot csi data in time domain but could not do so if you find any command/code to plot in time domain then please share
its easy.take IFFT (inverse fourier transform) of the data you get in frequency domain (i.e the SNR vs 30 subcarrier plot)
@azizshahics can you mention the MATLAB code that can convert the CSI (CFR) into CIR!!
@azizshahics i take IFFT,but i cannot obtain the initial time in the time domain
blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } Please plot ith subcarrier vs packet number Ith subcarrier yaxis , packet number x axis Say you select subcarrier number 10.plot amplitudes of 10th subcarrier vs total number if packets received.
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On Monday, December 12, 2016, 2:48 pm, sunyu1122 [email protected] wrote:
@azizshahics i take IFFT,but i cannot obtain the initial time in the time domain
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@azizshahics 
I cannot obtain the initial time in the time domain , i need the help about it ,thanks.
@sunyu1122 For time domain, select a subcarrier, say subcarrier # 10, plot packet number on x-axis and corresponding amplitude on y-axis will give you time plot.
@azizshahics Sorry,how to plot the above graph？every article says to apply the ifft for converting to CIR.Can you describe the detailed steps？thanks for ahead. .
@xiaolingu Yes you have to take IFFT to get CIR, but in this particular case you need to plot all the amplitudes of a particular subcarrier (i.e. subcarrier # 12) against packet index.This is right way to plot the time domain graph.
Should you have any questions, please let me know.
@azizshahics Would you explain a simple instance how a CSI vector of 30 subcarriers is converted to a CIR?Can you give me a email ? This public space couldn't be suitable in talk too often.
@azizshahics @xiaolingu excuse me?how to plot the CIR and CFR graph？every article says to apply the ifft for converting to CIR.Can you describe the detailed steps？thanks for ahead.
@azizshahics @xiaolingu and ,how to plot Power delay profiles ?thanks!
@xiaolingu @azizshahics Have you succeeded in getting CIR (PDP)? I don't know the exact details about this. I will be greatly appreciated if you can share the matlab code with us. Thanks a lot in advance!
For each packet, do we get multiple CIR (like CIR for each antenna)? Or only one?I seem to be performing IFFT on CSI at each antenna.
@azizshahics According to your suggestion:
For time domain, select a subcarrier, say subcarrier # 10, plot packet number on x-axis and corresponding amplitude on y-axis will give you time plot
I got the following plot:
I have received 693 packets. So here x axis is the number of packet and y axis is corresponding i-th, say 10th subcarieer's csi amplitude. Now my question is, is the x axis is indicationg time in second? that means, Is it from 0 to 693 seconds?
Please reply at your earliest popssible time.
Thanks.
blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } It is in time domain, x axis indicate the number of packets received. Regarding total time taken for total received packets you may ask @asif
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On Friday, April 28, 2017, 9:59 pm, tfsanam [email protected] wrote:
@azizshahics According to your suggestion:
For time domain, select a subcarrier, say subcarrier # 10, plot packet number on x-axis and corresponding amplitude on y-axis will give you time plot
I got the following plot:
I have received 693 packets. So here x axis is the number of packet and y axis is corresponding i-th, say 10th subcarieer's csi amplitude. Now my question is, is the x axis is indicationg time in second? that means, Is it from 0 to 693 seconds?
Please reply at your earliest popssible time.
Thanks.
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whenwhever you figure out on how to identify the time taken in collected all the packets.please share the method os us as well
On Saturday, April 29, 2017 1:40 AM, tfsanam <[email protected]> wrote:
@azizshahics Thanks. That helps.— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.
@tfsanam I am trying to get the similar graph of CSI amplitude vs no. of packets. Could you care to explain how you got this? To be more precise, how did you extract the CSI amplitude value for a single subcarrier from each packet. I am using Matlab and am able to plot the graph of CSI amplitude of different subcarriers for one packet. Thanks,
@abhinav2938 Hi, I am trying to plot CSI amplitude, i.e., (db(abs(csi))) vs. no. of packets for each subcarrier. Could you tell me how you solved this problem? How can I plot CSI amplitude vs time for each subcarrier? I am using Matlab too. Many thanks,
@azizshahics Hi, could you please tell me how I can plot all the CSI amplitudes of a particular subcarrier (i.e. subcarrier # 10) versus packet index (or versus time)? Many thanks
@azizshahics @abhinav2938
My data was collected by sending 10 Wi-Fi frames every second for 6 second. Here are more info
Hello yes I can help you Please send your answer with whats app My number is +989138523055 I'm wating
On Fri, 15 May 2020, 8:54 am susan381, [email protected] wrote:
@abhinav2938 https://github.com/abhinav2938 Hi, I am trying to plot CSI amplitude vs no. of packets for each subcarrier. Could you tell me how you solved this problem? I am using Matlab too. Many thanks,
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+447395404194 ------------------------------------------------------ Kind Regards,Syed Aziz Shah, Assistant Professor / Lecturer Room E141, John Dalton Building, Department of Computing and Mathematics, Faculty of Science & Engineering, Manchester Metropolitan University.Email: [email protected]
On Friday, May 15, 2020, 03:06:09 PM GMT+8, mojtabaaghayi <[email protected]> wrote:
Hello yes I can help you Please send your answer with whats app My number is +989138523055 I'm wating
On Fri, 15 May 2020, 8:54 am susan381, [email protected] wrote:
@abhinav2938 https://github.com/abhinav2938 Hi, I am trying to plot CSI amplitude vs no. of packets for each subcarrier. Could you tell me how you solved this problem? I am using Matlab too. Many thanks,
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