A modified SLM scheme with low complexity for PAPR reduction of OFDM systems

被引:0
|
作者
Heo, Seok-Joong [1 ]
Noh, Hyung-Suk [1 ]
No, Jong-Seon [1 ]
Shin, Dong-Joon [2 ]
机构
[1] Seoul Natl Univ, Dept EECS, INMC, Seoul, South Korea
[2] Hanyang Univ, Div ECE, Seoul, South Korea
关键词
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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, 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.
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页码:1417 / +
页数:2
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