首页|ICI elimination of M-band wavelet multi-carrier modulation system
ICI elimination of M-band wavelet multi-carrier modulation system
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To solve the inter carrier interference (ICI) elimination problem of an M-band wavelet multi-carrier modulation system, this paper analyzes the principle of the ICI caused by the Doppler frequency shift and its mathematical expression based on the M-band wavelet multi-carrier modulation system model. Through the analysis of the mathematical expression and combining with the perfect reconstruction conditions of the filter banks, we propose the design conditions of an M-band filter to reduce and eliminate the ICI. The impulse response model of the filter design conditions and an iterative algorithm is also established. The simulation results show that th e proposed ICI reduction and elimination methods can effectively improve the system performance.
M-band waveletmulti-carrier modulationDoppler frequency shiftinter carrier interference (ICI)impulse response
PENG Zhang-you、LIU Yan-yan、ZHANG Xing
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School of Communication and Information Engineering,Shanghai University,Shanghai 200072,P.R.China
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