改进无侧信息OFDM系统PAPR的PTS方案的优化取消信号

IF 4.8 1区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
The Khai Nguyen;Ebrahim Bedeer;Ha H. Nguyen;J. Eric Salt;Colin Howlett
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引用次数: 0

摘要

为了降低正交频分复用(OFDM)系统的峰均功率比(PAPR),提出了一种新的盲部分传输序列(PTS)方案。现有的PTS方案保留了第一个子块(SB)作为其他子块的相位参考,我们提出在第一个子块中添加优化的抵消信号(CS)以进一步降低PAPR。CS的设计使得它们可以由接收器重建,并在解调前从接收信号中减去,而不需要侧信息(SI)。由于在接收端复制CS的错误会降低错误性能,我们设计了一种新的CS保护机制,专门用于保护CS的重建。结果表明,该方法在不牺牲数据速率的情况下显著降低了PAPR和符号错误率(SER)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimized Canceling Signals for PTS Schemes to Improve the PAPR of OFDM Systems Without Side Information
This paper introduces a novel blind partial transmission sequence (PTS) scheme to lower the peak-to-average-power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) systems. Unlike existing PTS schemes in which the first sub-block (SB) is preserved as a phase reference for other SBs, we propose to add an optimized canceling signal (CS) to the first SB to further reduce the PAPR. The CS is designed such that they can be reconstructed by the receiver, and subtracted from the received signals before demodulation without requiring side information (SI). Since errors in reproducing the CS at the receiver can degrade the error performance, we design a novel CS protection mechanism specifically to protect the reconstruction of the CS. The proposed method is shown to significantly reduce the PAPR and symbol error rate (SER) without sacrificing the data rate due to using SI as many other existing PTS schemes.
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来源期刊
IEEE Transactions on Broadcasting
IEEE Transactions on Broadcasting 工程技术-电信学
CiteScore
9.40
自引率
31.10%
发文量
79
审稿时长
6-12 weeks
期刊介绍: The Society’s Field of Interest is “Devices, equipment, techniques and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.” In addition to this formal FOI statement, which is used to provide guidance to the Publications Committee in the selection of content, the AdCom has further resolved that “broadcast systems includes all aspects of transmission, propagation, and reception.”
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