Title :
SFBC and ICI Cancellation Method Comparison in the MISO DFT-Spread OFDM System with Frequency Offset and Phase Noise
Author :
Li, Yingshan ; Ryu, Heung-Gyoon ; Sun, Dongyan ; Liu, Haiyuan ; Zhang, Zhiming ; Shi, Ming
Author_Institution :
Dept. of Commun. Eng., Nankai Univ., Tianjin, China
Abstract :
In this paper, frequency offset and phase noise influence in the MISO SFBC DFT-spread OFDM system is analyzed theoretically, then, ICI cancellation methods are applied to minimize interference. Simulation results show that in the 2 times 1 SFBC DFT-Spread OFDM system, ICI and SCI can not be neglected because the system even intensifies interference due to the simultaneous generation of more SCI and ICI than 2 times 1 DFT-Spread OFDM only. This phenomenon can be resolved by using ICI self-cancellation methods, especially, considerable performance improvement can be achieved by using data-conjugate method.
Keywords :
OFDM modulation; block codes; discrete Fourier transforms; intercarrier interference; interference suppression; ICI cancellation method; MISO DFT-spread OFDM system; SFBC system; data-conjugate method; discrete Fourier transforms; frequency offset; intersubcarrier-interference cancellation; multiple input single output system; phase noise; space frequency block coding; spread orthogonal frequency division multiplexing system; Computational modeling; Discrete Fourier transforms; Educational institutions; Frequency division multiaccess; Information analysis; Interference cancellation; MIMO; OFDM; Peak to average power ratio; Phase noise;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5301099
