Modified selective mapping technique for PAPR reduction in OFDM systems

Wen Xiang Lin, Jia Chin Lin, Yu Ting Sun

研究成果: 書貢獻/報告類型會議論文篇章同行評審

10 引文 斯高帕斯(Scopus)

摘要

Orthogonal frequency division multiplexing (OFDM) is desirable technique of wireless communication. Subcarriers of OFDM signal are orthogonally used on the frequency spectrum, and can resist multipath effect characteristics. Recently, OFDM has been used widely in many kinds of communication standards. But the OFDM signal has a major disadvantage is high peak-to-average power ratio (PAPR), which can resulted in significant nonlinear distortion when the signal is operated through a nonlinear region of power amplifier, and induces the degradation of bit error rate (BER). The methods of PAPR reduction, selective mapping (SLM) is effective and uncomplicated. SLM is a linear operation, it doesn't destroyed the signal itself. The received signal can be demodulated perfectly at receiver. But SLM has a problem of the high computational complexity, in this paper, introduce a modified SLM. The technique uses the concept of partition into subcarriers, called a partial-sequence SLM (P-SLM), which considerably reduces the computational complexity with the similar performance of PAPR reduction compared with the conventional SLM scheme. The simulation results show that it achieves better performance of reduces the computational complexity than the conventional SLM scheme.

原文???core.languages.en_GB???
主出版物標題2012 12th International Conference on ITS Telecommunications, ITST 2012
頁面764-768
頁數5
DOIs
出版狀態已出版 - 2012
事件2012 12th International Conference on ITS Telecommunications, ITST 2012 - Taipei, Taiwan
持續時間: 5 11月 20128 11月 2012

出版系列

名字2012 12th International Conference on ITS Telecommunications, ITST 2012

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???event.eventtypes.event.conference???2012 12th International Conference on ITS Telecommunications, ITST 2012
國家/地區Taiwan
城市Taipei
期間5/11/128/11/12

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