超宽带OFDM系统的一种新设计

2009 Digest of Technical Papers International Conference on Consumer Electronics Pub Date : 2009-05-29 DOI:10.1109/ICCE.2009.5012223

Eunchang Choi, J. Huh, S. Kang

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引用次数: 1

摘要

介绍了一种三维正交频分复用技术(OFDM)。在新的OFDM中，利用三维信号映射器和二维离散反傅立叶变换分别将三维信号分配到OFDM子信道和对信号进行调制。如果将三维信号映射器归一化为具有相同的平均功率，则三维信号映射器的最小欧几里德距离要远于二维信号映射器的最小欧几里德距离。结果表明，与传统的OFDM方案相比，所提出的OFDM方案的误码性能有了很大的提高。

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A new design of OFDM for ultra-wideband systems

In this paper, a three-dimensional (3-D) orthogonal frequency division multiplexing (OFDM) is introduced. In the new OFDM, a 3-D signal mapper and 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 signal mapper is much farther than that of the 2-D mapper if both mappers are normalized to have the same average power. As a result, the proposed OFDM has much improved error performance as compared with the conventional scheme.

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来源期刊

2009 Digest of Technical Papers International Conference on Consumer Electronics

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