Multiuser communication based on the discrete fractional fourier transform

In this paper, a multiuser communication technique based on the discrete fractional Fourier transform (DFrFT) is discussed. Eigenvectors of the DFrFT transform matrix are used as user sequences, which are transmitted over a real adder channel. Compared to other transforms used in the same context, t...

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Bibliographic Details
Published in2012 IEEE International Conference on Communications (ICC) pp. 3569 - 3570
Main Authors Lima, J. B., de Souza, R. M. C., Cunha, D. C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2012
Subjects
Discrete Fourier transforms
Eigenvalues and eigenfunctions
Equations
Signal to noise ratio
Vectors
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Summary:In this paper, a multiuser communication technique based on the discrete fractional Fourier transform (DFrFT) is discussed. Eigenvectors of the DFrFT transform matrix are used as user sequences, which are transmitted over a real adder channel. Compared to other transforms used in the same context, the advantage of using the DFrFT is that the sequences can be generated from a systematic procedure and the number of generated subspaces, which determines the maximum number of simultaneous users of a scheme, is arbitrary. After describing the basic idea of our approach, we discuss some aspects related to its practical implementation and present preliminary simulation results.
ISBN:9781457720529
1457720523
ISSN:1550-3607
1938-1883
DOI:10.1109/ICC.2012.6363895