Abstract: The frequency hopping (FH) and error correction algorithms of Bluetooth were analyzed and improved for the defects of security and anti jamming. The performance of FH sequences based on advanced encryption standard (AES) iterated block cipher was analyzed,and the results showed the sequences had good performance on uniformity,correlation, and security. An enhancing error correction mechanism(EECM) combining the forward error correction with interleaving was adopted for Bluetooth DM packets, and the simulation was carried out based on Gillbert-Elliott channel. hhe result showed the EECM could improve the anti-interference ability largely. The ASIC structures of FH sequences generator and EECM were proposed,and the realized results of these enhancing IPs were obtained by using low-power,low-cost VLSI design techniques. The performance of enhancing Bluetooth baseband was analyzed compared with the standard 131uctooth baseband. Finally, the Bluctooth system-on-chip was realized and tested by using platform-based design method.

Key words: Bluetooth, Baseband, Security, Error correction, ASIC, System on chip platform