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A Channel Estimation Technique for Uplink TDD MC-CDMA

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2 Author(s)
Cosovic, I. ; DoCoMo Commun. Lab. Eur. GmbH, Munich ; Sanguinetti, L.

In this paper, we address the problem of channel estimation in the uplink of TDD MC-CDMA with combined-equalization. Channel responses are estimated based on least-squares approach assuming that training blocks are periodically inserted into the uplink data stream. Compared to channel estimation approaches that are designed for conventional uplink MC-CDMA with post-equalization, the proposed scheme provides better performance in terms of mean-square channel estimation error and bit-error rate. Moreover, we investigate the impacts of channel variations and of energy boosting of the training blocks on the system performance

Published in:

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd  (Volume:4 )

Date of Conference:

7-10 May 2006