计算机工程与应用2009，Vol.45Issue(33)：96-98,102,4.DOI:10.3778/j.issn.1002-8331.2009.33.031
CAZAC序列的OFDM改进同步算法
Improved frame synchronization algorithm by using CAZAC sequence
摘要
Abstract
A new packet detection algorithm is proposed using the good character of CAZAC(Constant Amplitude Zero Auto Cor-relation) sequence,which avoids the interference from other short training sequences by changing the standard preamber structure of the IEEE 802.11 and redesigning the short training sequence for packet detection.Since the number of the short training se-quence for coarse frequency synchronization is added,the accuracy of coarse frequency synchronization is improved.On the other hand,the number of preamber is not changed,and the complexity of the algorithm is not increased.In the burst mode,simulation shows that 4 dB gain is achieved compared with traditional methods under the condition of the Rayleigh fading frequency selec-tive multi-path channel.关键词
CAZAC序列/分组检测/粗频率同步Key words
Constant Amplitude Zero Auto Correlation(CAZAC) squence/packet detection/coarse frequency synchronization分类
信息技术与安全科学引用本文复制引用
郑金金,罗志年,庹莹瑛,朱峰,黎忠武..CAZAC序列的OFDM改进同步算法[J].计算机工程与应用,2009,45(33):96-98,102,4.基金项目
国家自然科学基金(the National Natural science Foundation of China under Grant No.60502034,No.60625103). （the National Natural science Foundation of China under Grant No.60502034,No.60625103）
