Title :
Uplink Time-Domain MMSE Channel Estimation for MC-CDMA Systems
Author :
Ribeiro, Carlos ; Gameiro, Atílio
Author_Institution :
Polytech. Inst. of Leiria, Leiria
Abstract :
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.
Keywords :
channel estimation; code division multiple access; least mean squares methods; radio links; time-domain analysis; wireless channels; BRAN-A broadband wireless channel model; MC-CDMA systems; base station; channel impulse response; minimum mean square error channel estimator; multicarrier code division multiple access; uncoded pilot sequences; uplink time-domain MMSE channel estimation; AWGN; Additive white noise; Channel estimation; Interference; Land mobile radio; Mobile communication; Multicarrier code division multiple access; Rayleigh channels; Telecommunications; Time domain analysis;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394057
