Title :
A semi-blind detection for STBC MIMO-OFDM systems in impulsive noise environments using zernike moments
Author :
Nosrati, Mostafa ; Amindavar, Hamidreza
Author_Institution :
Amirkabir Univ. of Technol., Tehran
Abstract :
In space time block coded (STBC) MIMO-OFDM systems, most receivers assume the channel noise to be Gaussian, this paper considers the semi-blind detection of symbols in impulsive noise environments. Our aim is to introduce a new receiver for STBC MIMO-OFDM transmission over Rayleigh fading channels using Zernike moments. The detrimental effects of multipath on the transmitted symbols are alleviated using invariance to rotation, and scaling properties of the Zernike moments. The performance of the new method is shown in symmetric alpha-stable (SalphaS) and Middleton noise environments.
Keywords :
MIMO communication; OFDM modulation; Rayleigh channels; block codes; space-time codes; Rayleigh fading channels; STBC MIMO-OFDM systems; Zernike moments; channel noise; impulsive noise environments; semi-blind detection; space time block code; Communication channels; Detectors; Fading; Gaussian noise; MIMO; OFDM; Receiving antennas; Space technology; Wireless communication; Working environment noise;
Conference_Titel :
Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-0778-1
Electronic_ISBN :
978-1-4244-1779-8
DOI :
10.1109/ISSPA.2007.4555362
