A CME Based Channel Estimation Approach for MIMO-OFDM Systems

被引：0
|
作者：
Lu, Zhen [1 ]
Kadi, Anthony [1 ]
Aubrey, Tim [1 ]
机构：
[1] Univ Technol Sydney, Fac Engn & Informat Technol, Sydney, NSW 2007, Australia
来源：
2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8 | 2009年
关键词：
channel estimation; MIMO; OFDM; space-time coding; CME; MDL; least squares; nonzero taps; MODULATION; DIVERSITY;
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 pilot-assisted, conditional model-order estimation (CME) based channel estimation algorithm is presented. The algorithm is proposed for MIMO-OFDM systems and can detect both channel frequency responses and number of multi-path taps. In addition, the modified CME estimator is also verified its capacity in determining the nonzero taps. The performance of the proposed approach is compared to the popular minimum description length (MDL) algorithm for estimation of the number of channel paths, by means of simulation in the context of a 2x2 MIMO-OFDM transceiver system. Result indicates that the new algorithm is superior in channel order estimation to the MDL algorithm in MMO-OFDM system over a noisy frequency selective fading channel.
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页码：783 / 786
页数：4
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