Title :
Intercarrier interference suppression method for OFDM systems with multiple-symbol differential detection
Author :
Jia, Ziyan ; Handa, Shiro ; Sasamori, Fumihito ; Oshita, Shinjiro
Author_Institution :
Fac. of Eng., Shinshu Univ., Nagano, Japan
Abstract :
In this paper, an intercarrier interference (ICI) suppression method for frequency domain differential orthogonal frequency division multiplexing (OFDM) systems with multiple symbol differential detection (MSDD) in time-varying frequency-selective fading channels is proposed. The decision metric is derived by considering the statistical effects of ICI from all the subcarriers as well as considering the fading autocorrelations. Knowledges of transmitted signals from both inner and outer subcarriers of an MSDD observation interval can be used to estimate and mitigate the effects of ICI. The effectiveness of the proposed method is demonstrated by computer simulations.
Keywords :
OFDM modulation; fading channels; intercarrier interference; interference suppression; OFDM systems; decision metric; fading autocorrelations; intercarrier interference suppression method; multiple-symbol differential detection; orthogonal frequency division multiplexing; time-varying frequency-selective fading channels; Autocorrelation; Bit error rate; Computer simulation; Fading; Frequency domain analysis; Interference suppression; OFDM; Performance loss; Time varying systems; Transmitters;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450162
