DocumentCode
2169924
Title
Cyclic-prefix based noise variance and power delay profile estimation for OFDM systems
Author
Cui, Tao ; Tellambura, Chintha
Author_Institution
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fYear
2005
fDate
24-26 Aug. 2005
Firstpage
518
Lastpage
521
Abstract
In this paper, we derive cyclic-prefix (CP) based parameter estimators for orthogonal frequency division multiplexing (OFDM) systems. Signal correlation due to the use of the CP is exploited without requiring additional pilot symbols. Noise variance, power delay profile, the number of paths and the signal to noise ratio are estimated. The proposed algorithms can be readily used for applications such as minimum mean-square error (MMSE) equalization.
Keywords
OFDM modulation; channel estimation; fading channels; least mean squares methods; multipath channels; MMSE equalization; OFDM systems; cyclic-prefix based noise variance; minimum mean-square error; multipath fading channels; noise variance; orthogonal frequency division multiplexing; power delay profile; power delay profile estimation; signal correlation; Delay estimation; OFDM;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications, Computers and signal Processing, 2005. PACRIM. 2005 IEEE Pacific Rim Conference on
Print_ISBN
0-7803-9195-0
Type
conf
DOI
10.1109/PACRIM.2005.1517340
Filename
1517340
Link To Document