A Low Complexity Partial Transmit Sequence Scheme by Use of Dummy Signals for PAPR Reduction in OFDM Systems

被引：44

作者：

Varahram, Pooria ^{[1
]}

Al-Azzo, Wisam F. ^{[2
]}

Ali, Borhanuddin Mohd ^{[1
]}

机构：

[1] Univ Putra Malaysia, Dept Commun Engn, Serdang 43400, Malaysia

[2] Dhofar Univ, Dept Elect & Comp Engn, Salalah, Oman

来源：

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2010年 / 56卷 / 04期

关键词：

PAPR; OFDM; DSI; PTS; WiMAX; AVERAGE POWER RATIO; PTS;

D O I：

10.1109/TCE.2010.5681122

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 novel technique for reducing the peak to average power ratio (PAPR) in OFDM systems by using the combination of the dummy sequence insertion (DSI) and partial transmit sequence (PTS) is proposed. In DSI increasing the number of dummy sequence decrease the transmission efficiency (TE) and in PTS the complexity increases when the number of subblock increases. Unlike the conventional PTS which needs several inverse fast fourier transform (IFFT) operations, the proposed DSI-PTS technique requires half IFFT operations only, while the PAPR performance is even better. So, it can remarkably reduce the computational complexity. Simulation results are examined with IEEE 802.16-2004 standard. By applying the DSI-PTS method about 0.5 dB reduction in PAPR at complementary cumulative distribution function (CCDF) of 0.01% is achieved compared to the conventional PTS while the complexity is reduced(1).

引用

页码：2416 / 2420

页数：5

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