Fig. 1From: Leveraging MIMO-OFDM radio signals for device-free occupancy inference: system design and experimentsa MIMO scenario with one TX and two RX WiFi devices. Each RX node is equipped with Mr=3 receiving antennas while the TX node is fitted with Mt=3 transmitting antennas. b For each TX-RX communication, the generic MIMO link â„“j is also identified by the couple (u,v) corresponding to the transmitter pu and the receiver antenna qv. For instance, link â„“4 is identified by p2 and q1, i.e., by the antenna pair (u=2,v=1)Back to article page