A Modified SLM Scheme With Low Complexity for PAPR Reduction of OFDM Systems

Author

Heo, Seok-Joong ; Noh, Hyung-Suk ; No, Jong-Seon ; Shin, Dong-Joon

Author_Institution

Seoul Nat. Univ., Seoul

Volume

53

Issue

4

fYear

2007

Firstpage

804

Lastpage

808

Abstract

In this paper, we propose a new peak-to-average power ratio (PAPR) reduction scheme of orthogonal frequency division multiplexing (OFDM) system, called a modified selected mapping (SLM) scheme, which considerably reduces the computational complexity with keeping the similar PAPR reduction performance compared with the conventional SLM scheme. The proposed scheme is analytically and numerically evaluated for the OFDM system specified in the IEEE 802.16 standard. For the OFDM system with 2048 subcarriers, the proposed scheme with 4 binary phase sequences can reduce the complex multiplications by 63.5% with the similar PAPR reduction compared with the SLM scheme with 16 binary phase sequences.

Keywords

IEEE standards; OFDM modulation; communication complexity; wireless LAN; IEEE 802.16 standard; OFDM system; PAPR reduction performance; binary phase sequence; computational complexity; modified SLM scheme; modified selected mapping; orthogonal frequency division multiplexing system; peak-to-average power ratio reduction scheme; Bit error rate; Computational complexity; Digital video broadcasting; Distortion; OFDM; Partial transmit sequences; Peak to average power ratio; Signal generators; Wireless LAN; Wireless communication; Low computational complexity; orthogonal frequency division multiplexing (OFDM); peak-to-average power ratio (PAPR); selected mapping (SLM);

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2007.907063

Filename

4359971