seemoo-lab / nexmon_csi

Channel State Information Extraction on Various Broadcom Wi-Fi Chips
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Setting rx and tx #275

Open Cheon932354 opened 2 years ago

Cheon932354 commented 2 years ago

Thank you for your wonderful tools.

I am a person who is studying device free indoor localization. Therefore, i would like to collect wifi information, create a fingerprint through the collected CSI, and estimate the location.

I succeeded in implementing the tool you provided, and I got curious here.

For example, suppose there is a public place where wifi is implemented. And there is an RP that wants to estimate the location. Then should I go to RP with Nexmon_csi and measure CSI?

Or should I put a person on the RP and collect CSI by fixing it to the receiver's location?

I'm confused whether nexmon_csi plays a fixed Rx role.

And if I use the udp port 5500, data can be collected even if I don't ping separately, so do I not have to ping separately?

matthiasseemoo commented 2 years ago

With nexmon_csi you can only receive CSI information.

On 2. Aug 2022, at 11:29, Cheon932354 @.***> wrote:

Thank you for your wonderful tools.

I am a person who is studying device free indoor localization. Therefore, i would like to collect wifi information, create a fingerprint through the collected CSI, and estimate the location.

I succeeded in implementing the tool you provided, and I got curious here.

For example, suppose there is a public place where wifi is implemented. And there is an RP that wants to estimate the location. Then should I go to RP with Nexmon_csi and measure CSI?

Or should I put a person on the RP and collect CSI by fixing it to the receiver's location?

I'm confused whether nexmon_csi plays a fixed Rx role.

And if I use the udp port 5500, data can be collected even if I don't ping separately, so do I not have to ping separately?

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NewbCooder commented 1 year ago

Hi @Cheon932354 nexmon makes you receiver to act as sniffer and it has no communication link, you will always need a device to ping the Tx