MIMO OFDM Systems Based on the Optimal Fractional Fourier Transform

被引：0
|
作者：
Huiqi Wang
Hong Ma
机构：
[1] Sichuan University,College of Mathematics
来源：
Wireless Personal Communications | 2010年 / 55卷
关键词：
OFDM; MIMO; FrFT; Channel estimation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Transmission over wireless time-varying channels can lead to inter-carrier interference (ICaI) and inter-cell interference (ICeI) in multiple-input multiple-output orthogonal frequency division multiplexing systems. In this paper, it is considered that each cell can search respective optimal order chirp basis to replace exponential basis to suppress ICaI, and optimal interference restricted combination equalizer based on the Fractional Fourier Transform is proposed to suppress ICeI. Furthermore, a novel equivalent channel estimation algorithm is used to improve system simulation efficiency. The simulation results demonstrate the effectiveness of proposed approach.
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页码：265 / 272
页数：7
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