Title :
High mobility in OFDM systems based on FFT
Author :
Eldarov, Nasimi ; Guoping Tan ; Herfet, Thorsten
Author_Institution :
Telecommun. Lab., Saarland Univ., Saarbrucken, Germany
Abstract :
A high mobility algorithm is introduced for OFDM systems based on the FFT which can compensate Doppler shifts in time-variant channels with low complexity. We first propose a channel matrix inversion algorithm with a complexity similar to FFT and then introduce a channel matrix construction based on matching pursuit algorithm.
Keywords :
Doppler shift; OFDM modulation; matrix algebra; mobile communication; Doppler shifts; FFT; OFDM systems; channel matrix construction; channel matrix inversion algorithm; matching pursuit algorithm; mobility algorithm; time-variant channels; Complexity theory; Delays; Dictionaries; Doppler shift; Matching pursuit algorithms; OFDM;
Conference_Titel :
Consumer Electronics (ICCE), 2015 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4799-7542-6
DOI :
10.1109/ICCE.2015.7066467
