Real-Time Decoding and Analysis of WiFi Signals on CPU and GPU

In communication technologies, rapid resolution of signals in parallel has an important place, especially in real-time applications. In many signal applications, the slowness of the system causes packets to miss information, which causes the signal to not be processed correctly. Therefore, within the scope of this study, the mathematical infrastructure and outputs of the system for detecting the Orthogonal Frequency Division Multiplexing (OFDM) packets, which is a digital transmission type, with Python, and finding correlation and packet initiation are given. After the packet is detected, the signal is decoded with the phase correction and decoding processes, which are the signal processing steps, and the operation of the system on the CPU and GPU together with the parallel and serial operation is examined. As a result of the examinations, how much the system is optimized on the GPU according to the CPU is also shown separately in the function blocks. Thus, it will be possible to integrate this system into different signal processing projects by decoding WiFi in real time.