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Uplink Time-Domain MMSE Channel Estimation for MC-CDMA Systems

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2 Author(s)
Ribeiro, C. ; Polytech. Inst. of Leiria, Leiria ; Gameiro, A.

An uplink minimum mean square error (MMSE) channel estimator for broadband multicarrier code division multiple access (MC-CDMA) systems is investigated. All nodes in the system share the same sub-carriers to convey the pilot symbols. Due to the use of uncoded pilot sequences endowed with time-shifted properties, the base station (BS) has the ability to extract each node's channel impulse response (CIR) from the combined signal in the time-domain without multiuser interference. The feasibility of the investigated method is confirmed by system simulation using BRAN-A broadband wireless channel model.

Published in:

Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on

Date of Conference:

3-7 Sept. 2007

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