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dhalperi / linux-80211n-csitool-supplementary

802.11n CSI Tool based on iwlwifi and Linux-2.6
http://dhalperi.github.com/linux-80211n-csitool/
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the different about get_scaled_csi_sm.m and get_scaled_csi.m?spatial mapping #254

Open linkzhao opened 7 years ago

linkzhao commented 7 years ago

Hi all, I am new to this area,could anyone tell me the different about get_scaled_csi_sm.m and get_scaled_csi.m? and what spatial mapping is mean? thanks!

tahmidzbr commented 7 years ago

@linkzhao did you figure it out?

linkzhao commented 7 years ago

sorry，i don't figure it out so far,and please tell me when you konw the answer.thanks

tahmidzbr commented 7 years ago

@linkzhao sure. Although can i ask you a question? Did you try using a router as transmitter and laptop with 5300 as receiver? When i try pinging and logging CSI i see that for some packets my no. of transmit antennas and no. of receive antennas vary. Like if i ping 100pkts/s for say 2-3 minutes some packets show Nt=2,Nr=3 some show Nt=1 Nr=2 and it keeps varying. Do you happen to know why?

linkzhao commented 7 years ago

i have not meet such problem，maybe you should check your antenna and try to change a router

lidongning commented 7 years ago

I have the same question , Nt=2,Nr=3 ,but some packets show Nt=1 Nr=2 and it keeps varying. could you help me ? @tahmidzbr

AliAwad1994 commented 5 years ago

you have to fix the transmission rate to solve the problem of varying Rx and Tx... it's hard to find a commercial AP that supports this feature.