Maximum Likelihood Estimation of Carrier Frequency Offset for MIMO-OFDM Systems with Precoder

被引：0
|
作者：
Hao, Miin-Jong [1 ]
Lai, Chiu-Hsiung [1 ]
机构：
[1] Natl Kaohsiung First Univ Sci & Technol, Dept Comp & Commun Engn, Kaohsiung, Taiwan
来源：
IEEE INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS 2012) | 2012年
关键词：
OFDM; MIMO; carrier frequency offset; CFO; maximum likelihood estimation; CHANNEL ESTIMATION; CFO;
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：
A novel ML algorithm for the CFO estimation in the MIMO-OFDM systems with the PAPR reduction precoder is developed. By applying the property of the precoding matrix, a cost function similar to the multiple signal classification (MUSIC) algorithm is developed for the CFO estimation. With the precoding scheme in the MIMO-OFDM system, we can achieve the advantage in the PAPR reduction of OFDM signals and perform a simple CFO estimation concurrently. Our simulation results show that the MSE performance of the MIMO-OFDM will be improved with the increase in the roll-off factor of the precoder in both the AWGN and multipath fading channel environments.
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页数：6
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