A New Low-Complexity PTS Scheme Based on Successive Local Search Using Sequences

被引：23

作者：

Cho, Young-Jeon ^{[1
]}

No, Jong-Seon ^{[1
]}

Shin, Dong-Joon ^{[2
]}

机构：

[1] Seoul Natl Univ, INMC, Dept Elect Engn & Comp Sci, Seoul 151744, South Korea

[2] Hanyang Univ, Dept Elect Engn, Seoul 133791, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2012年 / 16卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Kasami sequences; OFDM; PAPR; PTS; quaternary sequences; AVERAGE POWER RATIO; OFDM SIGNALS; PAPR REDUCTION;

D O I：

10.1109/LCOMM.2012.071612.121055

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A new partial transmit sequence (PTS) scheme with low computational complexity is proposed, where two search steps are taken to find a subset of phase rotating vectors showing good peak-to-average power ratio (PAPR) reduction performance. In the first step, sequences with low correlation are used as phase rotating vectors for PTS scheme, which are called the initial phase vectors. In the second step, local search is performed based on the initial phase vectors to find additional phase rotating vectors which show good PAPR reduction performance. Numerical analysis shows that the proposed PTS scheme achieves better PAPR reduction performance with significantly reduced computational complexity than the existing low-complexity PTS schemes.

引用

页码：1470 / 1473

页数：4

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