小间距天线的MIMO-OFDM分集算法

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Diversity algorithm for the small-space array antenna for MIMO-OFDM systems

LI Wen-gang;YI KE-chu;WANG Ying-min;SONG Wei

(State Key Lab. of Integrated Service Networks, Xidian Univ., Xi’an 710071， China)

Received:2008-03-06 Revised:1900-01-01 Online:2008-10-20 Published:2008-09-12
Contact: LI Wen-gang E-mail:wgli@mail.xidian.edu.cn

Abstract

Abstract: For the small-space array antenna, the spatial channels exhibit high correlation. Under this scenario, the space-frequency block codes(SFBC) scheme cannot lead to significant diversity gains. This paper proposes a new diversity method-SDA(small space array atenna diversity algorithm), which can lead to a great diversity gain without any channel state information (CSI) in the transmitter. By scheduling the symbols in the frequency domain, we have improved the error performance of small-space array antenna MIMO systems. The results of LTE downlink simulation shows that the error probability will be reduced form 0.1 to 0.01 when the signal noise rate(SNR) is 6dB and the code rate is 2／3.

Key words: correlated channel, MIMO, LTE, diversity, SFBC

CLC Number:

TN929.5

LI Wen-gang;YI KE-chu;WANG Ying-min;SONG Wei. Diversity algorithm for the small-space array antenna for MIMO-OFDM systems
[J].J4, 2008, 35(5): 811-815.

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Diversity algorithm for the small-space array antenna for MIMO-OFDM systems

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