An Iterative Parallel OFDM Demodulation for Fast Time-Varying Fading Channels

被引：0

作者：

Denno, Satoshi ^{[1
]}

Aoki, Ippei ^{[1
]}

Umehara, Daisuke ^{[1
]}

Morikura, Masahiro ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Informat, Sakyo Ku, Kyoto 6068501, Japan

来源：

2010 4TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS) | 2010年

关键词：

SYSTEMS; RECEIVER;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a novel OFDM demodulation scheme, which achieves superior performance even in fast time-varying multipath fading channels where the conventional OFDM demodulator degrades seriously because of time selectivity in the channel. The proposed scheme consists of several equalizers which equalize received signals with channel impulse responses at different time instants in parallel. A selector following these equalizers selects the most reliable signal from the outputs of these equalizers. Furthermore, the proposed demodulator employs an inter-carrier interference (ICI) canceler to mitigate degradation due to the time selectivity in the channels. In this paper, two novel ICI cancelers are proposed. Finally, the performance of the proposed OFDM demodulators are verified by means of computer simulation.

引用

页数：6

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