Title :
Efficient WH-OFTDM signals processing
Author :
Petrov, Dmitry ; Hamalainen, Timo
Author_Institution :
Math. Dept., MSU M.V. Lomonosov, Moscow, Russia
Abstract :
Utilization of well-localized bases allows to improve considerably the efficiency and robustness against intercarrier interference (ICI) of now existing wireless digital communication systems based on Orthogonal Frequency Division Multiplexing (OFDM). The efficient algorithm of orthogonal well-localized finite dimensional generalized Weyl-Heisenberg (WH) basis synthesis is considered in the paper. Optimal basis parameters are proposed. Computationally efficient modulation and demodulation algorithms for signals constructed from WH bases are described. Presented modeling results confirm good bases´ localization characteristics and robustness against Doppler shift. This article presents main results of research work related to the development of enhanced modulation technique with Orthogonal Time-Frequency Division Multiplexing (OFTDM).
Keywords :
OFDM modulation; intercarrier interference; signal processing; Doppler shift; WH-OFTDM signals processing; Weyl-Heisenberg basis synthesis; intercarrier interference; orthogonal frequency division multiplexing; Algorithm design and analysis; OFDM; Robustness; Signal processing; Signal processing algorithms; Time frequency analysis; OFDM; Signal Processing; Weyl-Heisenberg bases; digital modulation;
Conference_Titel :
Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2010 International Congress on
Conference_Location :
Moscow
Print_ISBN :
978-1-4244-7285-7
DOI :
10.1109/ICUMT.2010.5676659