基于安全与纠错算法的增强型蓝牙基带研究与实现  

Research and Realization of Enhancing Bluetooth Baseband Based on Security and Error Correction Algorithm

作　　者：李振荣[1] 庄奕琪[1] 张博[1] 牛玉峰[1] 

机构地区：[1]西安电子科技大学微电子学院宽禁带半导体材料与器件教育部重点实验室,西安710071

出　　处：《计算机科学》2010年第8期107-110,151,共5页Computer Science

基　　金：国家自然科学基金项目(60676053)资助

摘　　要：基于蓝牙在安全、纠错和抗干扰方面的不足,分析和改进了蓝牙协议数据链路层的跳频和纠错算法。分析了基于高级加密标准(AES)迭代型分组密码算法构造的新型跳频序列的性能,仿真结果表明该序列具有良好的安全性、均匀性和相关性。针对蓝牙DM分组,采用了融合交织编码和前向纠错的增强型纠错机制,并基于Gillbert-Elliott信道模型进行了仿真。结果表明该增强型纠错机制大大提高了数据传输的抗干扰能力。提出了基于AES的跳频序列发生器和融合交织编码的增强型纠错机制的ASIC实现结构,并运用低功耗和资源优化技术,给出了VLSI实现结果。基于改进算法IP,实现了高安全、强纠错的增强型蓝牙基带,并结合标准蓝牙基带进行了性能分析。最后,采用基于平台的设计方法,搭建了蓝牙SoC系统平台,并进行了实测。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. The 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 Bluetooth baseband. Finally, the Bluetooth system-on-chip was realized and tested by using platform- based design method.

关 键 词：蓝牙 基带 安全性 纠错性 专用集成电路设计 片上系统平台 

分 类 号：TN918[电子电信—通信与信息系统]