Title :
Frequency offset and phase noise influence and its compensation in the DFT-spread OFDM system
Author :
Yingshan Li ; Ryu, Heung-Gyoon ; Zhou, Li jie ; Dongyan Sun ; Haiyuan Liu ; Junwen Li
Author_Institution :
Dept. of Commun. Eng., Nankai Univ., Tianjin
Abstract :
In this paper, frequency offset and phase noise influence and its compensation technique are discussed in the DFT-spread OFDM system. Simulation results show that DFT-spread OFDM introduces more interference than OFDM because of DFT spreading phase offset mismatch caused by frequency offset and random phase noise. Data conjugate ICI self-cancellation method is suggested to improve system performance.
Keywords :
OFDM modulation; discrete Fourier transforms; intercarrier interference; DFT-spread OFDM system; ICI self-cancellation method; discrete Fourier transforms; frequency offset; intersubcarrier interference; orthogonal frequency division multiplexing; phase noise; Bandwidth; Discrete Fourier transforms; Educational institutions; Interference; OFDM; Peak to average power ratio; Phase noise; Signal processing; Sun; System performance;
Conference_Titel :
Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on
Conference_Location :
Fujian
Print_ISBN :
978-1-4244-2063-6
Electronic_ISBN :
978-1-4244-2064-3
DOI :
10.1109/ICCCAS.2008.4657726
