Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/7045
Título: | Uplink channel estimation for multi-user OFDM-based systems |
Autor: | Ribeiro, C. Fernández-Getino Garcia, M.J. Gil Jiménez, V.P. Gameiro, A. García Armada, A. |
Palavras-chave: | Channel estimation OFDM Multi-user Uplink |
Data: | 2008 |
Editora: | Springer |
Resumo: | In this paper we propose a simple, yet flexible and efficient, channel estimator for the uplink in broadband orthogonal frequency division multiplexing (OFDM) systems. The processing is performed in the time-domain, by extracting the Channel’s Impulse Response (CIR) for each user from a joint training signal. In this OFDM system, the pilot sequence we advocate, where all users share the same pilot sub-carriers, consists of one OFDM-symbol endowed with time-shifted properties per user, which isolates each user’s CIR and is robust against multi-user interference. The feasibility of our approach is substantiated by system simulation results obtained using BRAN-A broadband mobile wireless channel model. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/7045 |
DOI: | 10.1007/s11277-007-9396-7 |
ISSN: | 0929-6212 |
Aparece nas coleções: | DETI - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Springer_full_paper.pdf | 1.13 MB | Adobe PDF |
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