Title :
Design of a Novel Frequency Domain Equalizer for OFDM Systems
Author :
Wang, Yong ; Chen, Hui-min ; Jin, Yan-liang ; Wu, Zhuo
Author_Institution :
Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai
Abstract :
This paper proposes a novel frequency domain equalizer (FEQ) to eliminate inter-symbol interference (ISI) and inter-carrier interference (ICI) in orthogonal frequency division multiplexing (OFDM) systems. This FEQ employs the minimum mean square error (MMSE) criterion for getting an optimum FEQ structure based on minimizing interference. Simulation results show that the equalizer is capable of eliminating ISI and ICI effectively, and suppressing noise simultaneously.
Keywords :
OFDM modulation; equalisers; intercarrier interference; intersymbol interference; least mean squares methods; OFDM systems; frequency domain equalizer; intercarrier interference; intersymbol interference; minimum mean square error criterion; orthogonal frequency division multiplexing system; Baseband; Delay; Equalizers; Finite impulse response filter; Frequency domain analysis; Interference elimination; Interference suppression; Intersymbol interference; OFDM; Time domain analysis;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.98
