Abstract: In this study, we propose a solution for interference with Bluetooth when connecting Bluetooth and other devices. We evaluate the performance of the random frequency hopping scheme and the adaptive frequency hopping scheme which are Bluetooth frequency hopping schemes when there is wireless LAN interference in all 2.4 GHz Bluetooth channels in the presence of Bluetooth and wireless LAN. The random frequency hopping scheme is a technique for generating a hopping pattern using the entire Bluetooth channel without considering the interference of the wireless LAN. The adaptive frequency hopping scheme is a technique for generating a hopping pattern using some Bluetooth channels in consideration of wireless LAN interference through periodic carrier sensing of Bluetooth. Simulation results show that, the use of adaptive frequency hopping reduces the packet error rate as the Bluetooth carrier sensing interval decreases even in the congestion of WLAN interference. In particular, the frequency hopping scheme has a performance improvement of about 13% in the average packet error rate compared to the adaptive frequency hopping scheme. It is expected that the packet error rate will be reduced through the adaptive frequency hopping even in the congestion of WLAN interference.