An EM-based channel estimation algorithm for OFDM with transmitter diversity Conference Paper

abstract

• We study channel estimation for OFDM systems utilizing transmitter diversity and operating over multipath fading channels. An expectation-maximization (EM) based estimation algorithm is introduced and compared to least-squares based estimation algorithms. At each iteration and for every OFDM link, the EM algorithm partitions the problem of estimating a multi-input channel into independent channel estimations for each transmit-receive antenna pair. It is shown that the EM algorithm is more robust to multipath channel delay profile variations and can be implemented more efficiently compared to a recently proposed algorithm.

authors

• Georghiades, Costas

published proceedings

• GLOBECOM '01: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-6

author list (cited authors)

• Xie, Y. Z., & Georghiades, C. N.

complete list of authors

• Xie, YZ||Georghiades, CN

publication date

• December 2001

publisher

• IEEE  Publisher

published in

• n1930-529XISSN  Journal

International Standard Book Number (ISBN) 10

• 0-7803-7206-9

start page

• 871

end page

• 875

volume

• 2

URL

• http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7633