Interference analysis of multicarrier systems based on affine Fourier transform

Authors:
Djuro Stojanovic;Igor Djurovic;Branimir R. Vojcic
Affiliations:
Crnogorski Telekom, Podgorica, Montenegro;Electrical Engineering Department, University of Montenegro, Podgorica, Montenegro;Department of Electrical and Computer Engineering, The George Washington University, Washington, DC
Venue:
IEEE Transactions on Wireless Communications
Year:
2009

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Abstract

Multicarrier techniques based on affine Fourier transform (AFT) have been recently proposed for transmission in the wireless channels. The AFT represents a generalization of the Fourier and fractional Fourier transform. We derive the exact and approximated interference power, upper bound and measure of applicability for the AFT based multicarrier (AFT-MC) system. It is demonstrated that the AFT-MC system effectively minimizes interference in time-varying multipath channels with line-of-sight component and narrow beamwidth of scattered components that often occurs in aeronautical and satellite communications.