Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/5577
Title: | A time domain channel estimation scheme for equalize-and-forward relay-assisted systems |
Author: | Neves, D. Ribeiro, C. Silva, A. Gameiro, A. |
Keywords: | Cooperative schemes Equalize-and-forward/estimate-and-forward relaying protocol OFDM systems Pilot-aided channel estimation Channel estimate Cooperative schemes Forward relaying OFDM systems Pilot-aided channel estimation Relay node Single antenna Time domain User terminals Antenna arrays Mobile telecommunication systems Orthogonal frequency division multiplexing Orthogonal functions Wimax Estimation |
Issue Date: | 2010 |
Publisher: | IEEE |
Abstract: | In this paper we propose a scheme with a dedicated relay node for an OFDM-based system. We consider an antenna array at the base station and a single antenna at both the user terminal and the relay node. The relay-assisted protocol considered is equalize-and-forward. The proposed scheme requires the computation of parameters which depend on unknown variables at the destination and we show that under some assumptions the scheme is suitable to provide all those requirements. Also, we show that since the pilots at the relay node are properly designed the TD-MMSE estimator can still provide the required channel estimate. The system performance is evaluated by considering a typical pedestrian scenario based on WiMAX specification. The results show that the degradation in the estimator performance is negligible. ©2010 IEEE. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5577 |
ISBN: | 978-1-4244-3573-9 |
ISSN: | 1090-3038 |
Appears in Collections: | DETI - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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Darlene_VTC_FALL_2010.pdf | 301.37 kB | Adobe PDF |
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