Title :
A Novel Frequency Domain Equalizer Against High Doppler in Single-carrier Communications
Author :
Wei, Li ; Ming, Chen ; Cheng, Shixin ; Wang, Haifeng
Author_Institution :
National Mobile Commun. Res. Lab., Southeast Univ., Nanjing
Abstract :
Frequency domain equalization (FDE) is a very efficient way to resist frequency selective fading in single-carrier communications, but its performance will be greatly degraded when suffering serious Doppler impact due to time varying channel state. Based on the single-carrier system with FDE (SC-FDE), a segmentation FDE scheme is proposed to resist high Doppler in this paper without the price of system bandwidth efficiency. Through numerical simulations, its significant performance improvement in high Doppler is proved.
Keywords :
equalisers; fading channels; frequency-domain analysis; intercarrier interference; Doppler impact; frequency domain equalization; frequency domain equalizer; frequency selective fading; inter-carrier interference; single-carrier communications; time varying channel state; Bandwidth; Degradation; Equalizers; Fading; Frequency domain analysis; Interference; Mobile communication; Multiuser detection; Proposals; Resists;
Conference_Titel :
Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE
Conference_Location :
Kowloon
Print_ISBN :
1-4244-0658-7
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2007.275
