A Iow complexity frequency domain pilot time domain doubly-average channel estimation for LOFDM systems

• Autorzy: Gao M. , Shen Y. , Xu K

Warianty tytułu

PL

Określanie kanałów w systemie LOFDM metodą algorytmu FPTA

• Języki publikacji: EN

Abstrakty

EN

In this work, a Iow complexity time domain channel estimation algorithm for LOFDM (Lattice Orthogonal Frequency Division Multiplexing) systems is proposed through doubly-average based on the equivalent time-frequency subspace projection and traditional frequency domain pilot time domain average (FPTA) algorithm with special pilot design. Furthermore, the interference problem is analyzed and the Cramer-Rao bound (CRB) of the time domain channel estimation for LOFDM systems is also deduced. Our theoretic analyses are confirmed by numerical results.

PL

Zaproponowano algorytm określania w dziedzinie czasu kanałów dla systemu LOFDM bazujący na projekcji czasowo-częstotliwościowej podprzestrzeni oraz systemu pilota FPTA. Przeanalizowano problem zakłóceń. Analizę teoretyczną potwierdziły rezultaty numeryczne.

Słowa kluczowe

EN

LOFDM; time-frequency subspace projection; channel estimation; Cramer-Rao bound

PL

LOFDM; określanie kanałów

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 4
• Strony: 270--274
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Gao M.

autor

Shen Y.

autor

Xu K

• Wireless Communication Faculty, Institute of Communications Engineering,

Bibliografia

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