Title :
An ICI reduction scheme with enhanced frequency diversity for OFDM systems
Author_Institution :
ECE Dept., Prathyusha Inst. of Technol. & Manage., Chennai, India
Abstract :
We analyze the frequency diversity of intercarrier interference (ICI) reduction methods in the presence of phase noise over multipath fading channels. Based on analysis, we propose an enhanced symmetric data conjugate (ESDC) method to exploit the frequency diversity in multipath fading channel. We derive carrier-to-interference ratio (CIR) expression of proposed ICI reduction scheme. The BER performance of the proposed system is compared with conventional ICI reduction methods such as adjacent data conjugate and symmetric data conjugate methods. Simulation results show that the proposed ICI reduction scheme provides an improvement in BER performance over a fading channel and it is also better than conventional ICI reduction techniques in the presence of ICI due to phase noise.
Keywords :
OFDM modulation; error statistics; fading channels; intercarrier interference; multipath channels; phase noise; BER performance; ICI reduction scheme; OFDM systems; adjacent data conjugate method; carrier-to-interference ratio expression; enhanced frequency diversity; enhanced symmetric data conjugate method; intercarrier interference reduction methods; multipath fading channels; phase noise; Bit error rate; Fading; Frequency diversity; OFDM; Phase noise; Receivers; Signal to noise ratio;
Conference_Titel :
Communications (NCC), 2011 National Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-61284-090-1
DOI :
10.1109/NCC.2011.5734726