Effects of clipping on the performance of OFDM with modified mapping

被引：0
|
作者：
Seong, BM [1 ]
Lee, WJ [1 ]
Joo, CB [1 ]
机构：
[1] Kyungnam Univ, Dept Elect & Elect Engn, Masan, South Korea
来源：
2002 IEEE REGION 10 CONFERENCE ON COMPUTERS, COMMUNICATIONS, CONTROL AND POWER ENGINEERING, VOLS I-III, PROCEEDINGS | 2002年
关键词：
OFDM; PAPR; clipping; modified mapping & demapping;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
One of the important problems in OFDM system is the large PAPR of the output signal, which can result the significant signal distortion in presence of nonlinear amplifiers. To reduce the PAPR, we use fundamentally the level clipping and propose the modified mapping & demapping method for effective reducing the PAPR of the OFDM signals with level clipping. We can significantly improve the BER performance characteristics for the OFDM system. We discussed, through extensive computer simulations, the effects of level clipping and modified mapping & demapping method on the performance of OFDM system, but there is a trade-off that ha something to do with bandwidth and data rate.
引用
收藏
页码：944 / 947
页数：4
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