A Reduced-Complexity PTS-Based PAPR Reduction Scheme for OFDM Systems

被引：48

作者：

Ku, Sheng-Ju ^{[1
]}

Wang, Chin-Liang ^{[1
,2
]}

Chen, Chiuan-Hsu ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Inst Commun Engn, Hsinchu 30013, Taiwan

[2] Natl Tsing Hua Univ, Dept Elect Engn, Hsinchu 30013, Taiwan

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2010年 / 9卷 / 08期

关键词：

Inverse fast Fourier transform (IFFT); orthogonal frequency division multiplexing (OFDM); partial transmit sequences (PTS); peak-to-average power ratio (PAPR) reduction; AVERAGE POWER RATIO; PARTIAL TRANSMIT SEQUENCES;

D O I：

10.1109/TWC.2010.062310.100191

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：

In this paper, a reduced-complexity partial transmit sequences (PTS) scheme is proposed to resolve the intrinsic high peak-to-average power ratio (PAPR) problem of orthogonal frequency division multiplexing (OFDM) systems. In the proposed PTS scheme, a cost function Q(n) is generated by summing the power of the time-domain samples at time.. in each subblock. Only those samples with Q(n) greater than or equal to a preset threshold are used for peak power calculation during the process of selecting a candidate signal with the lowest PAPR for transmission. As compared to the conventional PTS scheme, the proposed one achieves almost the same PAPR reduction performance with much lower computational complexity.

引用

页码：2455 / 2460

页数：6

共 22 条

[1]

Alavi A, 2005, IEEE COMMUN LETT, V9, P982, DOI 10.1109/LCOMM.2005.11014

[2] Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping [J].

Bauml, RW ;

Fischer, RFH ;

Huber, JB .

ELECTRONICS LETTERS, 1996, 32 (22) :2056-2057

[3] Peak-to-average power ratio reduction of an OFDM signal using partial transmit sequences [J].

Cimini, LJ ;

Sollenberger, NR .

IEEE COMMUNICATIONS LETTERS, 2000, 4 (03) :86-88

[4] Peak-to-mean power control in OFDM, Golay complementary sequences, and Reed-Muller codes [J].

Davis, JA ;

Jedwab, J .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1999, 45 (07) :2397-2417

[5] A low-complexity PTS-Based radix FFT method for PAPR reduction in OFDM systems [J].

Ghassemi, Abolfazl ;

Gulliver, T. Aaron .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2008, 56 (03) :1161-1166

[6]

GHASSEMIAN A, 2009, P IEEE PES POW SYST, P1

[7] CLIPPING DISTORTION IN DMT ADSL SYSTEMS [J].

GROSS, R ;

VEENEMAN, D .

ELECTRONICS LETTERS, 1993, 29 (24) :2080-2081

[8] An overview of peak-to-average power ratio reduction techniques for multicarrier transmission [J].

Han, SH ;

Lee, JH .

IEEE WIRELESS COMMUNICATIONS, 2005, 12 (02) :56-65

[9] PAPR reduction of OFDM signals using a reduced complexity PTS technique [J].

Han, SH ;

Lee, JH .

IEEE SIGNAL PROCESSING LETTERS, 2004, 11 (11) :887-890

[10] Companding transform for reduction in peak to-average power ratio of OFDM signals [J].

Huang, X ;

Lu, JH ;

Zheng, JL ;

Letaief, KB ;

Gu, J .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2004, 3 (06) :2030-2039

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