计算机技术与发展Issue(5)：113-116,4.DOI:10.3969/j.issn.1673-629X.2014.05.027
不同叠加训练序列PTS降低PAPR性能比较
Comparison of Different Superimposed Training Sequence PTS for PAPR Reduction
摘要
Abstract
Partial Transmit Sequences ( PTS) is an efficient scheme for Peak-to-Average Power Ratio ( PAPR) reduction in Orthogonal Frequency Division Multiplexing ( OFDM) system,but the performance of reduction is limited and the sideband information occupied the spectrum resources. Based on the traditional PTS method and the method of superimposed training PTS,the performance of PAPR reduc-tion from the superposition of different training sequences and the different training sequences for phase rotation factors and power alloca-tion factor is analyzed. The simulation results show that the better autocorrelation superimposed training sequence has the better capacity of PAPR reduction,different training sequences for phase rotation factor has little effect on PAPR reduction,and when using Hadama code and the power allocation factor is greater than 0. 15,the ability of PAPR reduction is enhanced. In this scheme,the training sequences can not only use for synchronization and channel estimation,but also promote the band efficiency and PAPR reduction ability of the system.关键词
正交频分复用/部分传输序列/峰均功率比/叠加训练序列/频谱利用率Key words
Orthogonal Frequency Division Multiplexing (OFDM)/Partial Transmit Sequences (PTS)/Peak-to-Average Power Ratio (PAPR)/superimposed training sequence/band efficiency分类
信息技术与安全科学引用本文复制引用
张杰,罗仁泽,党煜蒲,牛娜,李芮,杨娇..不同叠加训练序列PTS降低PAPR性能比较[J].计算机技术与发展,2014,(5):113-116,4.基金项目
国家自然科学基金资助项目(61072073) （61072073）
四川省教育科研重点项目(10ZA072) （10ZA072）
