Example project for extracting channel state information of up to 80 MHz wide 802.11ac Wi-Fi transmissions using the BCM4339 Wi-Fi chip of Nexus 5 smartphones.
I use 'tcpdump -i wlan0 -w test.pcap' command to get the .pcap file. Then I use Matlab to read the .pcap file. But the elements of CSI matrix are all zero. I have no idea what's wrong.
I use 'tcpdump -i wlan0 -w test.pcap' command to get the .pcap file. Then I use Matlab to read the .pcap file. But the elements of CSI matrix are all zero. I have no idea what's wrong.