Emulating GFSK Modulation for Wi-Fi-to-BLE Multicast Communication

Cross technology communication (CTC) facilitates direct communication between heterogeneous wireless technologies in the overlapped frequencies such as the 2.4 GHz ISM band. In this poster, we propose a novel method named WBMC for direct multicast communication from a Wi-Fi device to multiple BLE transceivers. This is achieved by making a Wi-Fi signal appear like BLE's Gaussian frequency shift keying (GFSK) signal over multiple subcarrier groups of Wi-Fi. Uniqueness of WBMC compared to prior Wi-Fi-to-BLE CTC studies is that one Wi-Fi transmission can deliver distinct data to multiple BLE receivers simultaneously. The potential and feasibility of the newly suggested approach is demonstrated through implementation on GNURadio.