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- W2124823685 abstract "Multi-carrier OFDM-CDMA has a range of advantages that make ideal for high data rate wireless access system. A two-layer carrier interferometry (CI) phase coding approach is proposed for enhancing multi-user detection of the mm wavelength multi-carrier OFDM-CDMA based uplink broadband wireless access system (BWA). The proposed OFDM-CDMA scheme uses a two-layer CI phase coding structure, which comprises outer and inner CI modulations and is combined with the iterative interference cancellation and detection to boost the system capability in the high radio fading and strong multiple access interference environment. The orthogonal property of the CI signals is exploited to enhance diversities in time, frequency and spreading code domains, as well as to simplify signal processing. The proposed two-layer CI OFDM-CDMA scheme for the uplink BWA is mathematically analyzed. The effects of the frequency synchronization errors are studied. Numeric simulations are carried out to evaluate the system performance. The simulation results show the superior characteristics of the proposed two-layer CI phase coding scheme for the uplink BWA system compared to other schemes." @default.
- W2124823685 created "2016-06-24" @default.
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- W2124823685 date "2008-09-01" @default.
- W2124823685 modified "2023-09-25" @default.
- W2124823685 title "Iterative Two-Layer CI Phase Coding Enhancement of Uplink Broadband Wireless Access System" @default.
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- W2124823685 doi "https://doi.org/10.1109/vetecf.2008.407" @default.
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