Higher Order Cumulants for Identification and Equalization of Multicarrier Spreading Spectrum Systems

• Autorzy: Safi S. , Frikel M. , Zeroual A. , M'Saad M.
• Języki publikacji: EN

Abstrakty

EN

This paper describes two blind algorithms for multicarrier code division multiple access (MC-CDMA) system equalization. In order to identify, blindly, the impulse response of two practical selective frequency fading channels called broadband radio access network (BRAN A and BRAN E) normalized for MC-CDMA systems, we have used higher order cumulants (HOC) to build our algorithms. For that, we have focussed on the experimental channels to develop our blind algorithms able to simulate the measured data with high accuracy. The simulation results in noisy environment and for different signal to noise ratio (SNR) demonstrate that the proposed algorithms are able to estimate the impulse response of these channels blindly (i.e., without any information about the input), except that the input excitation is i.i.d. (identically and independent distributed) and non-Gaussian. In the part of MC-CDMA, we use the zero forcing and the minimum mean square error equalizers to perform our algorithms. The simulation results demonstrate the effectiveness of the proposed algorithms.

Słowa kluczowe

EN

blind identification and equalization; communication channels; higher order cumulants; MC-CDMA systems

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2011
• Tom: nr 2
• Strony: 74--84
• Opis fizyczny: Bibliogr. 42 poz., rys., tab.

Twórcy

autor

Safi S.

autor

Frikel M.

autor

Zeroual A.

autor

M'Saad M.

• Polydisciplinary Faculty, Sultan Moulay Slimane University, Po. Box. 523, Beni Mellal, Morocco,

Bibliografia

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