A Simple Modulation Code with Peak Power Reduction and Coding Gain
A Simple Modulation Code with Peak Power Reduction and Coding Gain
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具有峰值功率降低和编码增益的简单调制代码
DOI：
10.1109/icc.2008.265
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
H. Ochiai
中科院分区：
文献类型：
--
作者：
M. Tanahashi;H. Ochiai
本文提出了一种用于带限单载波系统的简单调制码--符号插入码。该码可以利用固有的前向纠错（FEC）能力来降低峰均功率比（PAR）。所提出的代码的想法如下;由于PAR在很大程度上与连续离散符号的相移成比例，我们通过在信息符号之后插入冗余符号来消除大的相移。此外，利用插入过程具有网格结构的事实，我们采用符号插入作为级联码的分量码。一个8-PSK的例子表明，不仅PAR降低性能是上级的PAR降低方案，但也是一样大的编码增益是传统的容量接近Turbo码和LDPC码。所提出的系统的另一个优点是编码和解码过程的简单性。
In this paper, a simple modulation code called symbol insertion for band-limited single-carrier systems is proposed. This code can reduce the peak-to-average power ratio (PAR) with an inherent forward error correction (FEC) capability. The idea of the proposed code is as follows; since the PAR is largely proportional to the phase shifts of consecutive discrete symbols, we eliminate large phase shifts by inserting redundant symbols every after information symbols. Furthermore, exploiting the fact that the insertion process has a trellis structure, we employ the symbol insertion as a component code of concatenated codes. An 8-PSK example demonstrates not only that the PAR reduction performance is superior to conventional PAR reduction schemes, but also that the coding gain is as large as those of conventional capacity-approaching turbo and LDPC codes. Another advantage of the proposed system is simplicity of both coding and decoding processes.
一种新的网格整形方法，用于具有几乎恒定包络的脉冲整形 PSK 信号
DOI：
--
发表时间：
2007
期刊：
Proceedings of The 2007 IEEE International Conference on Communications (ICC 2007) CD-ROM
影响因子：
--
作者：
秋田一平;和田和千;田所嘉昭;K. Ishibashi;M. Tanahashi;M. Tanahashi
通讯作者：
M. Tanahashi
影响因子：
8.3
作者：
M. Tanahashi;H. Ochiai
通讯作者：
M. Tanahashi;H. Ochiai