Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/5579
Título: | Channel estimation schemes for OFDM relay-assisted systems |
Autor: | Neves, Darlene Ribeiro, Carlos Silva, Adão Gameiro, Atílio |
Palavras-chave: | Cooperative systems OFDM systems Pilot-aided channel estimation Relay based scenarios Amplify-and-forward Cooperative systems Least Square Minimum mean square errors OFDM systems Pilot-aided channel estimation Relay based scenarios Relay node Single antenna User terminals Wireless communications Estimation Mobile telecommunication systems Orthogonal frequency division multiplexing Wireless networks Wireless telecommunication systems Channel estimation |
Data: | 2009 |
Editora: | IEEE |
Resumo: | The aim of this paper is to adapt and evaluate the performance of two classical pilot-aided channel estimation schemes designed for OFDM systems: least square and minimum mean square error, in a relay-assisted scenario. We consider the Amplify-and-Forward, which is the simplest relay protocol for cooperative systems. Also, we consider the use of a single antenna at all the terminals: base station, user terminal and relay node. In our scenario, it is assumed that some of the user terminals deployed in a certain area could act as relaying-able terminals for the communications of other users. In this communication we show that the classical channel estimation techniques designed for conventional wireless communications can be extended for relay-assisted based systems under some modifications. © 2009 IEEE. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5579 |
ISBN: | 978-1-4244-2517-4 |
ISSN: | 1550-2252 |
Aparece nas coleções: | DETI - Comunicações |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Darlene_VTC_Spring_2009.pdf | 298.05 kB | Adobe PDF |
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