交织编码对蓝牙抗干扰性能改善的研究

doi:10.3969/j.issn.1001-2400.2013.03.016

J4 ›› 2013, Vol. 40 ›› Issue (3): 109-114+211.doi: 10.3969/j.issn.1001-2400.2013.03.016

交织编码对蓝牙抗干扰性能改善的研究

牛玉峰^1,2;庄奕琪¹;李振荣¹;徐飞¹

(1. 西安电子科技大学微电子学院，陕西西安 710071;
2. 浪潮集团有限公司，山东济南 250104)

收稿日期:2011-11-28 出版日期:2013-06-20 发布日期:2013-07-29
通讯作者: 牛玉峰
作者简介:牛玉峰(1976-)，男，西安电子科技大学博士研究生，E-mail: xdnyf@126.com．
基金资助:
国家自然科学基金资助项目(61076101);中央高校基本科研业务费专项资金资助项目(K50511250005)

Enhancing Bluetooth 2.1's anti-interference ability based on interleaving coding

NIU Yufeng^1,2;ZHUANG Yiqi¹;LI Zhenrong¹;XU Fei¹

(1. School of Microelectronic, Xidian Univ., Xi'an 710071， China;
2. Inspur Group Co.,Ltd., Jinan 250104， China)

Received:2011-11-28 Online:2013-06-20 Published:2013-07-29
Contact: NIU Yufeng

摘要/Abstract

摘要：

针对蓝牙2.1+EDR在纠错和抗干扰方面的不足，分析和改进了蓝牙协议中数据链路层的纠错算法．在蓝牙2.1+EDR规范中，采用了融合交织编码和前向纠错的增强型纠错机制，加入了具有交织编码的DM分组(DMI分组)以提高蓝牙的数据传输吞吐速率及抗干扰能力; 在Gillbert-Elliott信道下，建立了蓝牙数据传输吞吐量模型．利用该数学模型，计算出了各个数据分组在不同信道突发错误时的数据传输吞吐量．仿真结果表明，在蓝牙2.1+EDR新规范中加入DMI分组，明显地改善了数据传输的抗干扰能力，有效地提高了在突发错误信道下的数据传输速率．最后给出了该增强型纠错IP和增强型蓝牙基带IP的实现结果，并与标准蓝牙基带IP进行了比较，结果表明，引入增强型纠错IP大大提升了蓝牙基带的纠错性能，而蓝牙基带IP的功耗和面积资源只有少量的增加．

关键词: 蓝牙, 交织编码, 2.1+EDR规范, 吞吐量, Gillbert-Elliott信道

Abstract:

The error correction algorithms of Bluetooth are analyzed and improved for the defect of anti-interference ability. To enhance the data transmission throughput and anti-interference ability efficiently, an error correction enhancing mechanism (EECM) combining the forward error correction with interleaving is adopted for Bluetooth, a method of adding the DM packet with an interleaving code to the Bluetooth 2.1+EDR specification is proposed. The mathematical models of the data transmission throughput are set up over the Gillbert-Elliott channel; A numerical simulation of the throughput of different packets in different burst errors are carried out using the model. Simulation results show that adding DM packets and DMI packets to Bluetooth 2.1+EDR specification can improve the anti-interference ability and enhance data transmission throughput significantly in the burst errors channel. Finally, the realized results of the enhanced IP and enhanced Bluetooth baseband IP are obtained by using VLSI design techniques. The performance of the enhanced the Bluetooth baseband is analyzed in comparison with the standard Bluetooth baseband.

Key words: bluetooth, interleaving, 2.1+EDR specification, throughput, Gillbert-Elliott channel

中图分类号:

TN914.4

牛玉峰;庄奕琪;李振荣;徐飞. 交织编码对蓝牙抗干扰性能改善的研究[J]. J4, 2013, 40(3): 109-114+211.

NIU Yufeng;ZHUANG Yiqi;LI Zhenrong;XU Fei. Enhancing Bluetooth 2.1's anti-interference ability based on interleaving coding[J]. J4, 2013, 40(3): 109-114+211.

参考文献

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交织编码对蓝牙抗干扰性能改善的研究

Enhancing Bluetooth 2.1's anti-interference ability based on interleaving coding

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