论文信息 - Chirp based multiple access technique using fractional fourier transform

Chirp based multiple access technique using fractional fourier transform

In this paper we consider the use of chirp signals as signatures to identify user in multi-user communication system. We propose the use of fractional Fourier transform for extracting the desired signature chirp signal. We describe the complete multiple access system using this method. We show that the proposed system can support more number of users for the given bandwidth as compared to existing multiple access systems like TDMA/FDMA (GSM) and CDMA.

C. Pujara | P. Mehta | U.B. Desai

[1] S.E. El-Khamy,et al. Efficient multiple-access communications using multi-user chirp modulation signals , 1996, Proceedings of ISSSTA'95 International Symposium on Spread Spectrum Techniques and Applications.

[2] Charles E. Cook,et al. Linear FM Signal Formats for Beacon and Communication Systems , 1974, IEEE Transactions on Aerospace and Electronic Systems.

[3] W. Gregg,et al. On the Utility of Chirp Modulation for Digital Signaling , 1973, IEEE Trans. Commun..

[4] Haldun M. Özaktas,et al. The fractional fourier transform , 2001, 2001 European Control Conference (ECC).

[5] Soo-Chang Pei,et al. Fractional Fourier series expansion for finite signals and dual extension to discrete-time fractional Fourier transform , 1999, IEEE Trans. Signal Process..

[6] C. Capus,et al. Short-time fractional Fourier methods for the time-frequency representation of chirp signals. , 2003, The Journal of the Acoustical Society of America.

[7] Levent Onural,et al. Convolution, filtering, and multiplexing in fractional Fourier domains and their relation to chirp and wavelet transforms , 1994 .

[8] Zhou Min. Digital Computation of Fractional Fourier Transform , 2002 .