A class of low complexity PTS techniques for PAPR reduction in OFDM systems

被引：40
|
作者：
Xiao, Yue [1 ]
Lei, Xia [1 ]
Wen, Qingsong [1 ]
Li, Shaoqian [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Commun, Chengdu 610054, Peoples R China
来源：
IEEE SIGNAL PROCESSING LETTERS | 2007年 / 14卷 / 10期
基金：
中国国家自然科学基金;
关键词：
orthogonal frequency division multiplexing (OFDM); partial transmit sequence (PTS); peak-to-average power ratio (PAPR);
D O I：
10.1109/LSP.2007.898351
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents a class of low complexity partial transmit sequence (LC-PTS) techniques for reducing the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. The basic principle is to analyze and utilize the correlation among the candidate signals generated in PTS, so as to simplify the computational complexity. Furthermore, the proposed technique focuses on simplifying the computation for each candidate signal, instead of reducing the total number of candidate signals such as in [4]. Thus, it can be easily combined with other simplified techniques. Simulation results show that the new technique can effectively reduce the complexity compared with the conventional PTS scheme.
引用
收藏
页码：680 / 683
页数：4
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