An OFDM with 3-D Signal Mapper and 2-D IDFT Modulator

被引：45

作者：

Kang, Seo-Geun ^{[1
]}

机构：

[1] Gyeongsang Natl Univ, Sch Elect & Elect Engn, Jinju 660701, Gyeongnam, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2008年 / 12卷 / 12期

关键词：

Orthogonal frequency division multiplexing (OFDM); signal constellation; minimum Euclidean distance;

D O I：

10.1109/LCOMM.2008.081197

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, a novel orthogonal frequency division multiplexing (OFDM) is introduced. Here, a three-dimensional (3-D) signal mapper and two-dimensional (2-D) inverse discrete Fourier transform are used to allocate 3-D signals to OFDM subchannels and to modulate the signals, respectively. The minimum Euclidean distance of the 3-D mapper is much farther than that of the 2-D mapper if both mappers consisting of the same number of signal points are normalized to have the same average power. As a result, the proposed OFDM has significantly improved error performance when compared to the conventional one.

引用

页码：871 / 873

页数：3