Title :
Adaptive pulse shaped CP-OFDM for remote sensing satellites
Author :
Akah, Haitham M. ; Kamel, Aladin ; EL-Hennawy, Hadia M.
Author_Institution :
Space Div., Nat. Authority of remote sensing & space Sci., Cairo, Egypt
Abstract :
This paper studies the feasibility of using adaptive pulse shaping CP-OFDM in remote sensing satellites. A set of pulse shapes were generated using genetic algorithm that minimizes the mean square error of the timing offset estimator. These pulse shapes were used to train function approximation neural networks. Such neural networks make the use of adaptive pulse shaping in OFDM systems feasible. Results from neural networks simulation, which have shown the ability of neural networks to fulfill such function for a two ray model channels, are presented.
Keywords :
OFDM modulation; genetic algorithms; geophysical signal processing; neural nets; pulse shaping; remote sensing; CP-OFDM; adaptive pulse shaping; function approximation; genetic algorithm; neural networks; orthogonal frequency division multiplexing; remote sensing satellites; Function approximation; Genetic algorithms; Mean square error methods; Neural networks; Pulse generation; Pulse shaping methods; Remote sensing; Satellites; Shape; Timing; CP-OFDM; Neural Networks; Orthogonal Frequency Division Multiplexing; Pulse Shaping; Timing Offset Estimation;
Conference_Titel :
Recent Advances in Space Technologies, 2009. RAST '09. 4th International Conference on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-3627-9
Electronic_ISBN :
978-1-4244-3628-6
DOI :
10.1109/RAST.2009.5158207