DocumentCode
3472612
Title
Channel re-estimation in OFDM systems with constellation rotation
Author
Trifonov, P. ; Zirwas, W.
Author_Institution
St.-Petersburg State Polytech. Univ., St. Petersburg
fYear
2009
fDate
18-22 Jan. 2009
Firstpage
163
Lastpage
166
Abstract
The problem of channel estimation in MIMO-OFDM systems with multi-channel ARQ is considered. It is shown that one can improve the accuracy of channel estimates by re-using correctly decoded data. Constellation rotation method is proposed to improve the accuracy of channel estimates.
Keywords
OFDM modulation; automatic repeat request; channel estimation; MIMO-OFDM systems; channel re-estimation; constellation rotation method; multi-channel ARQ; AWGN; Automatic repeat request; Channel estimation; MIMO; Maximum likelihood decoding; OFDM; Protocols; Receiving antennas; State estimation; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Radio and Wireless Symposium, 2009. RWS '09. IEEE
Conference_Location
San Diego, CA
Print_ISBN
978-1-4244-2698-0
Electronic_ISBN
978-1-4244-2699-7
Type
conf
DOI
10.1109/RWS.2009.4957310
Filename
4957310
Link To Document