OFDM通信系统中的边信息嵌入式PTS方案

2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2007-09-24 DOI:10.1109/PACRIM.2007.4313234

H. Ryu, Seon-Ae Kim, Chengxiang Wang

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引用次数: 1

摘要

为了降低正交频分复用(OFDM)信号的峰均功率比(PAPR)，部分发射序列(PTS)方案得到了广泛的研究。PTS方案的一个必要条件是传输有关相位旋转因子的侧信息，以便正确恢复OFDM符号。本文提出了一种基于参考符号的边线信息嵌入PTS方案，并分析了接收到错误边线信息时的误码率性能。在该方法中，旋转因子的信息由参考符号的相位表示。该方法保持了与传统PTS方案相同的PAPR降低性能，并通过侧信息正确恢复OFDM符号以满足要求的误码率水平。此外，该方法可以方便地实现OFDM通信系统中各种数字调制格式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Side Information Embedded PTS Scheme in the OFDM Communication System

Partial transmit sequence (PTS) scheme has been widely studied to reduce the peak-to-average power ratio (PAPR) of Orthogonal frequency-division multiplexing (OFDM) signal since it is flexible and any spectral regrowth is not made. A necessity of the PTS scheme is to transmit the side information about the phase rotation factors for correct OFDM symbol recovery. In this paper, a new side information embedded PTS scheme using the reference symbols is proposed for the PAPR reduction and the BER performance is analyzed when the erroneous side information is received. In this proposed method, the information about the rotation factors is expressed by the phase of reference symbols. The proposed method maintains the same PAPR reduction performance as the conventional PTS scheme and OFDM symbols are correctly recovered by the side information to meet the required BER level. Also, the proposed method can be easily realized for all kinds of digital modulation formats in the OFDM communication system.

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来源期刊

2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing

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