Abstract: The Bluetooth piconet needs better average channel SNR (received signal-to-noise ratio) in order to transmit data effectively in different channels with the modulation methods in Bluctooth specification. The MSK modulation method could improve the data throughput performance of wireless communication in noisy environment efficiently. The Bluetooth data packet transmission mathematical model was built; the relations of I3luetooth piconet data throughput and the average channel SNR were derived. The corresponding functions were deduced.The data transmission performance with the MSK method and modulation methods in I3luetooth specification was analyzed. The MSK modulation method can improve the Bluetooth piconet data transmission throughput in low SNR environment. The simulation result proved the conclusion.

Key words: Bluetooth, Data transmission, Data throughout, MSK