It's difficult to meet the requirements of the WiFi protocol without using an FPGA or ASIC. The response time required after recieving a WiFi signal is on the order of microseconds. NI offers the 802.11 application framework, which runs on the USRP RIO. This uses the FPGA to provide fast enough timing and implements the physical layer and part of the MAC layer of WiFi.
Thanks for your reply! If we just want to receive WiFi signal,does it also need USRP RIO to establish the framework of WiFi signal? We only have USRP 2922.And does it also work using USRP 2922 and Labview?
Depends on what you're trying to do. The USRP 2922 can certainly recieve and monitor WiFi signals at the 2.4 GHz band. Processing those signals or doing higher-layer work might be difficult, though.
