CHANNEL ESTIMATION WITH CIRCULARLY SLIPPING WINDOW IN MIMO-OFDM SYSTEMS

CHANNEL ESTIMATION WITH CIRCULARLY SLIPPING WINDOW IN MIMO-OFDM SYSTEMS

Channel estimation is very important for MIMO （Multiple Input Multiple Output） OFDM （Orthogonal Frequency Division Multiplexing） systems, but its precision is reduced due to the noise in channel. In this letter, circularly slipping window is introduced to resist the noise. It can be proved by simula...

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Veröffentlicht in:Journal of electronics (China) 2006-11, Vol.23 (6), p.929-932
Hauptverfasser: Ge, Qihong, Sun, Zhi, Yang, Huazhong
Format: Artikel
Sprache:eng
Schlagworte:
MIMO-OFDM
信道估值
多重输出
循环滑动窗
通信理论
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container_title Journal of electronics (China)
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creator Ge, Qihong
Sun, Zhi
Yang, Huazhong
description Channel estimation is very important for MIMO （Multiple Input Multiple Output） OFDM （Orthogonal Frequency Division Multiplexing） systems, but its precision is reduced due to the noise in channel. In this letter, circularly slipping window is introduced to resist the noise. It can be proved by simulation that with the same channel model, optimal slipping window length is the same with different vehicle speed. MSE （Minimum Square Error） of channel is greatly reduced with circularly slipping window, and performance of the system is closed to that with correct channel estimation.
doi_str_mv 10.1007/s11767-006-0018-4
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subjects MIMO-OFDM
信道估值
多重输出
循环滑动窗
通信理论
title CHANNEL ESTIMATION WITH CIRCULARLY SLIPPING WINDOW IN MIMO-OFDM SYSTEMS
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